Features: Closure System: 2d Micro-Adjustable Aluminum Buckle - Provides a secure and personalised closure with optimal on-the-bike adjustability. One of the most Technologically advanced systems on the market, the 2D buckle is micro-adjustable and made with Aluminium. The Micro buckle features two independent levers which works against the indented buckled Strap for customised tension and release for each rider. A.I.C.S. (Adjustable Instep Closure System): Adapts the shoe to contour the foot whilst assuring constant support. This new closure system is made from high-strength PU and is positioned across the foot. Comprising of two micro-adjustable ratchets to adjust instep tension whilst maintaining proper fit and support. The closure system is completed with two Velcro straps. Comfort Fit Tongue: The shoe’s tongue is perforated for better internal airflow and features a high-tech cushioning layer for increased comfort. Heel Cup: All-new injection-molded plastic anatomic heel-cup will not deform or weaken. Anti-tendonitis form with internal non-slip treatment for the best foot stability and control. Reflective inserts provide maximum visibility in low-light conditions. Transpirant Insole: Made with special anatomic design conforming to the foot for optimal comfort. Features micro-perforations for ventilation. Removable. The new Gaerne Eps Light Evolution Sole is made of nylon. The ultra-thin thickness decreases the distance between the foot and pedal, allowing for optimal power output. Non-slip rubber inserts in the front and rear of the sole provide stability off the bike. Compatible with most available quick-release pedals.