Shoes

The Trailcross Clip-In is the latest addition to the Five Ten Trailcross family, designed from the ground up with adventure at its core. Packed with all the Trailcross technology, this latest model provides clip-in performance on the bike and all-day comfort when hiking off the bike. The addition of the Clip-In model takes the range to the next level, making our award-winning design available to clip-in pedal users for the first time. The Trailcross range was built from the ground up, starting with the Five Ten dotted outsole with the addition of a recessed cleat to clip into compatible pedals. This was then refined with hiking in mind, bringing the additional ridged grip to the toe and heel. The Trailcross Clip-In is a lightweight and breathable shoe. With the need for the shoe to provide all-day comfort but also deliver across the contact points on and off the bike, the mid-sole EVA technology provides the necessary toe flex for hiking, without losing the all-important stiffness. The Trailcross Clip-In utilizes a hook and loop closure for added security and to reduce heel lift. Clip-in pedal users no longer need to compromise when planning their next adventure. - Lace & velcro closure - Breathable mesh - RPU overlays - Impact resistant toe box - Lightweight eva w/ hike a bike last - Stealth marathon

The iconic design that gave birth to our first cycling shoes over 60 years ago meets modern materials to create our lightest racing shoes. Designed to retain all support and strength, the Sidi Sixty offers the ultimate fit in a pair of racing shoes for cycling. -The Sidi Tecno-4 Push System has a single rotor to reduce the shoe's weight and guarantees the precision of a micro-metric closure -The Adjustable Heel Retention device reinforces the top of the heel cup and improves the fit by closing the back of the shoe securely around the rider's heel -The heel retention device tightens the top of the heel cup so that the heel is secured during steep climbs and sprints, each side of the heel can be adjusted independently for a perfect fit -The Vent Carbon Sole is handmade exclusively of carbon fiber in a weave pattern oriented at opposing angles that maximize stiffness while allowing for a small degree of controlled flex in the toe area -The Vent Carbon Sole features a standard 3-hole drilling pattern, printed 10 mm lateral and fore/aft cleat alignment scale for easy cleat alignment and replacement -The key benefits of the Vent Carbon Sole are not only superior power transfer because of its light weight and stiffness, but also warm weather comfort -For walkability, Sidi cycling shoes include a replaceable polyurethane heel pad

The shoe that offers the best for everyone. Whether racing or a casual ride, the Sidi Genius 10 is simply the best platform for a great day in the saddle. Built on over 60 years of experience in manufacturing cycling shoes, Genius is designed on a carbon composite sole that offers the perfect combination of strength and comfort, while the Microtech upper adapts to the shape of the foot for superior comfort. -The Soft Instep Closure System is a wide, anatomically curved strap combined with a soft, thermo-formed EVA pad that distributes pressure evenly over the instep area -The Soft Instep Closure System is adjustable from both sides, to perfectly center the EVA pad over a high or low instep -Sidi's Tecno-3 System closure dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -Improved proprietary Sidi wire material is non-binding for intuitive and effortless on-the-fly adjustments -Like most Sidi small parts, the Tecno-3 system is serviceable and replaceable -The newly designed integrated heel cup is lightweight and reinforced to avoid deformations during prolonged strenuous use -The Carbon Composite Sole 20 is composed of nylon and injected carbon fiber. The result is a light and rigid sole that is impervious to humidity -The central part of the sole is graduated with a millimetric scale to facilitate accurate and repeatable cleat set-up -For walkability, Sidi cycling shoes include a user replaceable polyurethane heel pad

Designed for our professional athletes, the Sidi Shot 2S is crafted to deliver optimal power transfer while ensuring the utmost comfort, enabling athletes to stay focused on the road. Its carbon C-Boost sole harnesses the full strength of woven fibers, while the upper is constructed using Bioveg material derived from recycled microfibers and finished with an external plant-based coating. The innovative closure system is strategically positioned away from other riders, enhancing maneuverability in crowded situations. The adjustable heel retention mechanism allows you to secure the heel of the shoe, tightening the heel so that it conforms to any riders' heel shape. - The Tecno-3 Push Flex closure reduces the pressure zone on the instep and significantly improves the comfort of the closure  - The Adjustable Heel Retention Device reinforces the top of the heel cup and improves the fit by closing the back of the shoe securely around the rider's heel - The heel retention device tightens the top of the heel cup so that the heel is secured during steep climbs and sprints. Each side of the heel can be adjusted independently for a perfect fit - The all new Sidi integrated heel cup is reinforced to avoid deformation after prolonged efforts and extreme pressure. Anatomically shaped, it stabilizes and supports the foot while pedaling - The C-BOOST SRS Sole is made of the latest generation carbon, designed to conform to the metatarsal area, increasing the transmission of power directly to the pedals, guaranteeing ideal power transfer and support - Oval holes extend the adjustment position of the cleat by ± 5 mm and a millimeter scale is included for determining the riders personal cleat position - Provided with SRS (Sole Replacement System) inserts in Nylon and TPU, with the function of protecting the carbon in the areas most subject to deterioration from use and for increased durability while walking - The SRS inserts are integrated with ventilation holes that promote the circulation of air inside the sole with each pedal stroke

A fast and efficient shoe with tested strength and grip for the most demanding rides. Intuitive adjustments and a clean design make the Sidi Fast 2 an easy-to-use high-performance shoe. -The Single Tecno-3 system creates a perfect tension balance between the shoe's internal and external side, guarantees an excellent closure adapting to every instep -The newly designed integrated heel cup is lightweight and reinforced to avoid deformations after prolonged strenuous use -The Aerolite sole is designed to maximize aerodynamics and power transmission -The nylon and carbon fiber construction of the Aerolite Sole provides the ideal balance of stiffness for efficient power transfer, and flexibility for comfort -The Fast 2 includes a user replaceable polyurethane heel pad for improved stability and traction off the bike

Ride further, whatever the terrain, whatever the bike, whatever the destination. The Sidi Eagle 10 is the best shoe for any day on the dirt, whatever your riding style. The Microtech upper, the first microfiber introduced in cycling shoes years ago by Sidi, is the most comfortable Sidi has ever offered, while the sole is designed to ensure the ideal combination of performance and comfort both on and off the bike. -The Soft Instep Closure System is a wide, anatomically curved strap combined with a soft, thermo-formed EVA pad that distributes pressure evenly over the instep area -The Instep Closure System is adjustable from both sides, to perfectly center the EVA pad over a high or low instep, ensuring an ideal fit -The Tecno-3 System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -The all new proprietary SIDI Wire monofilament is completely non-binding for intuitive and effortless on-the-fly adjustments -The integrated heel cup, with a new light weight design is reinforced to avoid deformation during the most grueling of rides -The reflective inserts on the heel improve safety on the road, helping to signal the presence of the cyclist in conditions of poor visibility -The shape of the tread has been specifically designed for mountain biking, allowing improved grip, superior mud dispersion and great stability -The toe inserts are easily replaceable and offer the ability to mount crampons for particularly muddy rides -The Sidi MTB SR17 sole represents an ideal balance of stiffness for efficient power transfer and flexibility and comfort for walking

The Sidi MTB Speed 2 is a fast, efficient and durable shoe tested for the most difficult off road terrain. The ease of adjustment and clean design make it reliable and intuitive to use. -The Tecno-3 System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -Like most Sidi small parts, the Tecno-3 System is serviceable and replaceable -The Sidi MTB Competition Sole has been specifically designed for mountain biking and can be fitted with two toe spikes on the front for traction in difficult and muddy conditions. Toe spikes are sold separately -The reinforced heel cup stabilizes and supports the heel. Anatomically shaped to reduce heel slip and increase power transfer

The Sidi technology used for mountain biking is applied to the gravel discipline. The Sidi Dust Shoelace is a rigid high performance shoe with a tried and true closure design, technologically advanced and reliable. -The newly designed integrated heel cup is light weight and reinforced to avoid deformations after prolonged and strenuous use -Upper part of the toe section is rubberized to resist and deflect impacts from stones or debris when cycling -The Sidi MTB SR17 sole represents the ideal balance of stiffness for efficient power transfer and flexibility for walking -The toe inserts are easily replaceable and offers the possibility to mount spikes for particularly muddy rides

Technical Details: - Racer Fit for snug upper - Bounded upper all seamless for comfort to prevent pressure points - Integrated double X-Comfort Zone for a large range of feet width - BOA Li2, a new mechanism that generates higher power with finer resolution - PowerZone Technology for better ankle support and stability - Lace system with 4 independent adjustment zone to maximized comfort during long rides - 100% Carbon sole with Patented Air Chanel for constant airflow to prevent fatigue and numbness - 3D insoles with 3 adjustable arches for a custom fit - 7.9oz / 225g (size 42)

Whatever the journey, Sidi Aertis is there to make it easier and better. The comfort of a premium suede construction meets Firmor Closure technology to offer great lateral support. The nylon sole with replaceable rubber insert allows for maximum grip in any situation and increased walking comfort. -Designed for maximum lateral support the Firmor Closure contours the foot with a solid hold, and allows infinite size adjustment for the ideal individual fit -Sidi's Tecno-3 System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -The closure uses a new proprietary Sidi Wire monofilament that is completely non-binding for intuitive and effortless on-the-fly adjustments -Like most Sidi small parts, the Tecno-3 System is serviceable and replaceable -The Sidi MTB SR17 sole represents the ultimate result in terms of stiffness for pedaling and flexibility for walking -The toe inserts are easily replaceable and offer the possibility to mount spikes for particularly muddy rides

Drako 2S SRS is designed for athletes looking for maximum foot stability to unleash all their power. The ventilated carbon sole, with the innovative Firmor Lateral Support System, combines efficient power transfer with superb lateral stabilization of the foot. The dual rotor closure allows for a perfect individual fit, with added protection from mud and debris -The Soft Instep Closure System is a wide, anatomically curved strap combined with a soft, thermo-formed EVA pad that distributes pressure evenly over the instep area -The central mounted Single Techno-3 Push mechanism guarantees balanced fit for every type of instep -Techno-3 Push System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -The Adjustable Heel Retention Device reinforces the top of the heel cup and improves the fit by closing the back of the shoe securely around the rider's heel -The heel retention device tightens the top of the heel cup so that the heel doesn't slide out during steep climbs or sprints -Each side of the heel can be adjusted independently, for a perfect fit -The reinforced heel cup stabilizes and supports the heel. Anatomically shaped plastic, reduces heel slip and provides increased power transfer -The MTB SRS Carbon-Ground Sole raises the standard for mountain bike performance, dropping off about 100 grams per pair compared to the previous Dragon Carbon SRS sole without sacrificing power or durability -The MTB SRS Carbon-Ground Sole uses replaceable tread blocks in the heel and the toe - The Ground SRS treads and MTB plate are easily removable and replaceable

Technical Details: - Comfort fit - Bounder upper all seamless for comfort to prevent pressure points - New BOA Li2 micro-adjustment - Integrated X-Comfort Zone for a large range of feet width - Power Zone technology for better ankle support and stability to prevent adjustment - Carbon-injected/nylon outsole Ergo Grip 2 with improved traction on rocks - Removable studs for better traction in hard conditions - EVA insoles for better shock absorption - 12oz / 340g (size 42)

The Sidi Prima is designed for the modern rider. The Prima is easy to wear and adjust, thanks to its Firmor Closure and lightweight upper built to reduce foot fatigue. Its low-profile carbon nylon Aerolite Sole is engineered for efficient power transfer for sprinting, with enough flex and comfort for long rides. -The Single Tecno-3 System creates a perfect balance between the shoe's internal and external side, providing an excellent fit while adapting to every instep -The Sidi Mega Last provides Sidi fit and performance to riders who have slightly wider feet -The Sidi Mega Last is 4mm wider across the ball of the foot, has more volume, a higher instep and a wider heel cup -Mega lasts are sized EE to EEE -The newly designed integrated heel cup is light weight and reinforced to avoid deformations after prolonged strenuous use -Aerolite sole is designed to maximize aerodynamics and power transmission on the bike -The nylon and carbon fiber composite material of the Aerolite Sole provides the perfect balance of stiffness and flex for effortless and comfortable pedaling -For walkability, Sidi cycling shoes include a replaceable polyurethane heel pad

The shoe that offers the best for everyone: whether racing or a casual ride, Genius 10 is simply the best platform for a great day in the saddle. Built on over 60 years of experience in manufacturing cycling shoes, the Sidi Genius 10 is designed on a carbon composite sole that offers the perfect combination of strength and comfort, while the Microtech upper adapts to the shape of the foot for superior comfort -The Soft Instep Closure System is a wide, anatomically curved strap combined with a Soft, thermo-formed EVA pad that distributes pressure evenly over The Instep area -The Soft Instep Closure System is adjustable from both sides, to perfectly center The EVA pad over a high or low Instep -Sidi's Tecno-3 System closure dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -Improved proprietary Sidi wire material is non-binding for intuitive and effortless on-the-fly adjustments -Like most Sidi small parts, the Tecno-3 system is serviceable and replaceable -The newly designed integrated heel cup is light weight and reinforced to avoid deformations during prolonged strenuous use -The Carbon Composite Sole 20 is composed of nylon and injected carbon fiber. The result is a light and rigid sole that is impervious to humidity -The central part of the sole is graduated with a millimetric scale to facilitate accurate and repeatable cleat set-up -For walkability, SIDI cycling shoes include a user replaceable polyurethane heel pad -The women's specific fit is narrower across the ball of the foot and features less volume inn the instep area and a narrower heel cup

As the name says, it’s made for the city. Here’s a great high-tech and versatile product with the champion’s specs that can just as easily be worn to go for a coffee or for groceries. You will barely feel the elastic tongue on your foot. Make a smart choice. Go for comfort and quality. Our patented T-Flex outer sole was designed for you to be able to walk everywhere you want after the ride. You won’t believe how comfortable it feels to semi-float on our great technical foam... - Technology : Integrated X-Comfort Zone technology with better stretch - Easy slip on and breathable for great comfort - Outsole: T-FLEX rubber outsole with fiberglass / nylon - Insole: Regular EVA insole - Cleats: SPD compatible with 2 bolt

To give a break to the 26 bones that squash and squeeze in your foot while you’re riding, we have patented a unique X-Comfort Zone. It’s a small section inside the shoe that can expand up to 5 millimeters to prevent numbness. Without any extension system, the toes end up on top of each other and get numb. Thanks to this innovation, you won’t have to end your ride before you’re done ever again. For great performance, we’ve used a carbon composite sole that optimizes energy transfer on the pedal. We wish you an excellent season! - Technology : RACER FIT: High-performance fit reduces stack height to pedal - Integrated X-Comfort Zone technology with better stretch - Outsole: Patented Carbon Composite outsole - Insole: COOLMAX®: Moisture wicking, breathable and ventilated - Closure System: Boa Li2: mechanism generates higher power with finer resolution - Cleats: SPD-SL compatible with 3 bolt

Flat Pedal Mountain Bike Shoes with an Impact-Resistant Toe Box The adidas Five Ten Freerider Pro Mountain Bike Shoes match proven flat pedal control with enhanced impact coverage and a quick-drying synthetic upper. Cushioned and water-resistant, they offer comfort for full days on the bike. Stealth S1 rubber and a Dotty tread offer the legendary pedal control you expect from the Freerider. - Lace closure - Fast-drying synthetic upper - OrthoLite sockliner - Molded EVA midsole - Impact-resistant urethane toe box - Stealth S1 Dotty rubber outsole - Imported

High-Top Shoes for Adventure Biking To bikepack is to explore. When the ride is more about the adventure than the destination, these adidas Five Ten mountain biking shoes fit the bill. Pedal, push, and hike in any terrain with the comfort, traction, and support made for all-day adventure. - Regular fit - Lace closure - Textile and mesh upper - High-top adventure biking shoes - EVA midsole - Non-marking Stealth Phantom rubber outsole - Imported

These men's Five Ten clipless bike shoes are built for intense pedaling. The BOA® Fit System offers on-the-fly adjustments. A Stealth Marathon rubber outsole balances grip and durability. The impact-resistant toe box adds protection. Made with a series of recycled materials, this upper features at least 50% recycled content. - Micro-adjustable dial-based BOA® Fit System plus hook-and-loop straps - Synthetic upper with seamless overlays - Non-slip heel cup - Clipless shank - Impact-resistant toe box

As the name says, it’s a city shoe. Here’s a great high-tech and versatile product with great features that you can also wear to go for a coffee or groceries. You will barely feel the elastic tongue on your foot. Make a smart choice. Go for comfort and quality. Our patented T-Flex outer sole was designed for you to be able to walk everywhere you want after the ride. You won’t believe how comfortable you are while semi-floating on our technical foam... - Technology : Integrated X-Comfort Zone technology with better stretch - Easy slip on and breathable for great comfort - Outsole: New T-FLEX rubber sole: Adapted for any surface and provides good traction - Insole: Regular EVA insole - Cleats: SPD compatible with 2 bolt

The adidas Five Ten Freerider Canvas Mountain Bike Shoes are as street friendly as they are capable on the bike. A Dotty tread with Stealth S1 rubber sets you up for flat pedal control and bike-worthy durability sets you up for the trail. All with a fit and feel that sets the bar for versatile wear on and off the bike. - Lace closure - Yarn in upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester - Canvas upper - Textile lining - Reinforced toe - Stealth S1 rubber outsole

- More performance - Less discomfort - Better power transmission Full speed ahead – optimize your performance to the pedals! The IP Pro Solestar ergonomically stabilizes your foot on road and mountain bikes, supports efficient and comfortable movement, maximizes leg power and reduces discomfort. The IP Pro Solestar was developed with internationally renowned insole specialist Solestar.

- More performance - More comfort - Also suitable for walking Misalignment of the feet can significantly limit the enjoyment of cycling. With the IP Touring Solestar, Ergon offers all touring riders a significant gain in comfort, especially when covering longer distances. The patented stabilization delta keeps the foot in an ergonomic position, prevents discomfort and optimally transfers leg power to the pedal. Efficiency is maximized with a grippy surface made of nylon fabric. Finely ground walnut shells in the 3D foam padding aid in a keeping the feet cool. The insole shell, made of fiberglass composite, enhances pedaling efficiency. The IP Touring Solestar was developed with the internationally renowned insole specialist Solestar.

For top comfort, Planet Bike's Blitzen Shoe Covers are made of windproof fabric lined with microfleece to keep you warm. They boast Velcro closures for easy on/off and reflective accents for safety.

Ragnarök Tall is the remedy for cool and wet conditions. Our shoulder-season performance shoe features a waterproof membrane and tall neoprene cuff to regulate moisture and keep out mud and grit. End uncomfortable rides with Ragnarök’s unrivaled weather protection. - A redesigned opening makes Ragnarök easy to put on and take off, and a floating three-finger overflap allows riders to dial in the perfect fit - Ragnarök’s real rubber outsole has an aggressive tread for walking in mud and features a 2-bolt cleat mount - Tall neoprene cuff keeps debris out - Easy on and off - Floating three-finger overflap allows the BOA laces to tighten where they need to for an optimal fit - Imported

Mountain bikers who ride flat pedals deserve shoes with as much advanced technology as those who ride clipless, which is why we developed this flat pedal shoe with a BOA Fit System to provide unrivaled fit and comfort. The redesigned Launch Flat builds on everything we love about riding flat pedals: freedom of movement, versatility, walkability; and it kicks all the downsides to the curb. The Launch uses a lightweight, quick-drying upper, constructed from durable Cordura fabric made with recycled content. We partnered with the rubber experts at Goodyear to develop a tread compound that's both sticky and long-wearing for our PinLoc Outsole. The result is a sole that is wider for more surface contact and uses a chevron tread design to capture pedal pins, keeping your feet planted and in control. - BOA Fit System with L6C dial lets riders fine-tune fit while they ride - PinLoc Outsole with premium Goodyear rubber provides outstanding grip to keep you in control - Seamless, perforated upper is breathable and quick-drying, made with durable recycled Cordura - Nylon shank provides stiffness for pedaling comfort and efficiency - Reinforced toe box for added protection - EVA foam midsole cushions impacts - Designed specifically for flat pedals (not clipless compatible)

Whatever the journey, Aertis is there to make it easier and better. The comfort of a premium suede construction meets the Firmor Closure technology to offer great lateral support. The nylon sole with replaceable rubber insert allows for maximum grip in any situation and increased walking comfort. -Designed for maximum lateral support the Firmor Closure contours the foot with a solid hold, and allows infinite size adjustment for the ideal individual fit -The Sidi Mega Last provides Sidi fit and performance to riders who have slightly wider feet -The Sidi Mega Last is 4mm wider across the ball of the foot, has more volume, a higher instep and a wider heel cup -Mega lasts are sized EE to EEE -Sidi's Tecno-3 System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -The closure uses a new proprietary SIDI Wire monofilament that is completely non-binding for intuitive and effortless on-the-fly adjustments -Like most Sidi small parts, the Tecno-3 System is serviceable and replaceable -The Sidi MTB SR17 sole represents the ultimate result in terms of stiffness for pedaling and flexibility for walking -The toe inserts are easily replaceable and offer the possibility to mount spikes for particularly muddy rides

Designed for our professional athletes, the Sidi Tiger 2S efficiently transfers all the power you can unleash while maintaining a high level of comfort, allowing you to focus entirely on the course. The Tecno 3 closure is strategically placed to prevent contact with other riders in crowded situations. The upper is made of Bioveg material derived from recycled microfibers with a plant based external finish. The MTB SRS Carbon sole harnesses the strength of interwoven carbon fibers for efficient energy transfer and its SRS technology allows riders to maintain maximum grip level at all times. -The Tecno-3 Push Flex completely eliminates the pressure zone on the instep and significantly improves the comfort of the closure -Like most Sidi small parts, the Tecno-3 System is serviceable and replaceable -The adjustable heel retention device reinforces the top of the heel cup, closing the back of the shoe securely so the heel doesn't slide out during steep climbs or sprints -The all new Sidi Integrated Heel Cup is light, comfortable and reinforced to avoid deformation -Each side of the heel can be adjusted independently for a perfect fit -The upper part of the toe section is protected with anti-slip rubber to resist and deflect impacts from stones or debris when cycling -The MTB SRS Carbon-Ground Sole raises the standard for mountain bike performance, dropping around 100 grams per pair compared to the previous Dragon Carbon SRS sole without sacrificing power or durability -The MTB SRS Carbon-Ground Sole consists of replaceable tread blocks in the toe and heel attached to a medium-modulus carbon sole -The Ground SRS treads and MTB Plate are easily removable and replaceable and the sole is toe-spike compatible -To improve walkability, Sidi cycling shoes include a replaceable polyurethane heel pad

Dedicated to the difficult to fit, the Sidi Ergo 5 guarantees a perfect fit even for wider soles or high insteps, ensuring rigidity and performance with unparalleled fit and comfort. -The Soft Instep Closure System is a wide, anatomically curved strap combined with a soft, thermo-formed EVA pad that distributes pressure evenly over the instep area -The Sidi Mega Last provides Sidi fit and performance to riders who have slightly wider feet -The Sidi Mega Last is 4mm wider across the ball of the foot, has more volume, a higher instep and a wider heel cup -Mega lasts are sized EE to EEE -The Tecno-3 Push Flex dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -The Soft Instep Closure System is adjustable from both sides, to perfectly center the EVA pad over a high or low instep -The High Security Velcro closure is safe, simple, reliable, and easy to fine tune -The heel cup is integrated, with a new lightweight design, and is reinforced to avoid deformation after prolonged rides -The Sidi Carbon Composite 20 Sole is constructed of Carbon Fiber injected into a nylon matrix. The nylon is impervious to water damage and doesn't lose rigidity in hot or humid weather or as it ages. The result is a significantly lighter and stiffer sole

The Sidi Prima is designed for the modern rider. The Prima is easy to wear and adjust, thanks to its Firmor Closure and lightweight upper built to reduce foot fatigue. Its low-profile carbon nylon Aerolite Sole is engineered for efficient power transfer for sprinting, with enough flex and comfort for long rides. -The Single Tecno-3 System creates a perfect balance between the shoe's internal and external side, providing an excellent fit while adapting to every instep -The newly designed integrated heel cup is lightweight and reinforced to avoid deformations after prolonged strenuous use -The Aerolite sole is designed to maximize aerodynamics and power transmission on the bike -The nylon and carbon fiber composite material of the Aerolite Sole provides the perfect balance of stiffness and flex for efficient and comfortable pedaling -Sidi cycling shoes include a replaceable polyurethane heel pad designed for good walkability