The Gravel II, an updated version of the original entry-level MTB shoe, features a more durable T-FLEX outsole and expandable X-Comfort Zone to prevent tight shoes and numb feet.Expandable X-Comfort Zone stretches up to 5 mm to provide comfort and to prevent numbnessT-FLEX rubber outsole with berglass/nylon Thermo-bonded synthetic leather and mesh seamless construction upper prevents pressure pointsStrap in with three offset hook-and-loop closures Regular EVA insoleRemovable studs under toe cupWeight: 12.9oz/365g (based on men's size 38)