Afton’s proprietary Intact® rubber. Boasting a Shore A of 60, it’s a blend of durability and needed traction. Outsole constructed specifically to interface with a flat pedal yet provide traction when climbing and descending hills off the bike. Mono-directional interior shank supports your foot on the pedal during impacts, assists in energy transfer when pedaling, and reduces vibration yet flexes to allow normal walking. Reinforced toe box with additional protective PU taping together protect your toes and shoes from rock deflections and impacts. Venting in lateral, medial, and toe areas backed with air mesh to keep out debris induces cool air into the shoes in motion and allows venting when stationary. Anti-microbial molded foam insole to control odor and for proper heel and arch support does not break down use after use.