evo.com | ION Bike Shoes > The ION Rascal AMP Bike Shoes are built around the already stiff and excellent SupTraction clipless sole, and amped up to another level. They reinforced the shank to create a massively powerful pedaling platform that allows for optimal control, drive, and performance while you ride. Coupled with a lace and Velcro closure system for snug heel hold and customizable fit, these kicks are your ticket to uncompromising performance on the trail. Upper 74% Textile / 26% Synthetic Midsole 70% EVA / 30% TPU Rubberized Heel Cap External rubber heel cap for added protection. SupTraction Rubber Soul CL with Reinforced Shank The SupTraction Clipless sole provides great walking abilities with a sturdy rubber blend, but ION felt that the stiffness could still be amped. That's why they reinforced the shank inside the sole to get a plus in stiffness and make for a proper, high-end, trail oriented bike shoe. Velcro Wide Extra-wide Velcro for added support and individual, excellent fit. | ION Rascal AMP Bike Shoes 2023 - 45 in Black | Rubber