Mtb shoes colours black silver upper materials mesh microfibre nylon sole material nylon breathable fasteners buckle strap velcro compatible with spd shoe size 43 type mens shoes series sidi eagle intended use moutain bike mtb shoe technology sidi caliper buckle sidi high security velcro fastener sidi soft instep 2 anatomically shaped strap sidi heel cup additional information please be aware of the different colours of each offer uk shoe sizes