Zol Predator MTB Mountain Bike and Indoor Cycling Shoes 2 Bolt cleat compatibility for SPD, Crank Brothers and all MTB shoe pedals 3 Carbon Fiber designed Velcro Straps, safely secures foot while pedaling and Carbon fiber designed heel cup provide foot stability No stitching mesh leather front makes shoe comfortable and lightweight, tongue center separation helps ankle move freely Double injection fiberglass-injected nylon sole make shoe rigid while pedaling and comfortable in long rides. Perforated insole helps drain sweat and water from riding and environment Weight in 42cm is 346 grams