TRI VELCRO: Perfect fit during the ride, thanks to the Tri-Velcro strap, which also allows a fast transition. UPPER MATERIAL: Seamless – No unneeded pressure zones. The high-end upper material is a Micro Fiber. The material adapts to the shape of the foot while wearing the shoe. SOCK LINERS: The Suplest sock liners have an anatomic footbed. This allows the feet to stay in an ergonomic position whilst in use. The sock liners are made of a shock absorbing EVA foam. CARBON OUTSOLE: In order to bring the force directly onto the pedal, Suplest use a very thin and stiff full-carbon outsole. HEEL LOOP: The Heel loop helps to get into the shoes faster. HEEL CAP: Suplest have developed a new heel cap, which offers a better fixation of the foot and additionally has been designed to help protect the heel from injury in accidents. VENTILATION: The ventilation holes on the upper and side of the shoe allow for perfect ventilation of the foot – air conditioning of the best kind. SYSTEM COMPATIBILITY: The carbon outsole is compatible with all the well-known pedal brands such as SPD, Look, Time and Speedplay.