Road bike shoes colours yellow red black white upper materials mesh nylon lining material texon sole material carbon breathable fasteners buckle strap velcro compatible with spd r shoe size 42 types womens shoes mens shoes series sidi genius shoe technology sidi caliper buckle sidi high security velcro fastener sidi millennium 3 outer sole sidi replaceable heel pad sidi soft instep 2 anatomically shaped strap sidi heel cup uk shoe size 7