Design: Mesh upper partially made from recycled polyester and double jacquard recycled content Extended heel tab designed for an easy pull-on Late stage meta-rocker provides a propulsive and smooth ride on the trail In-Shoe Comfort: Lighter midsole compound designed to provide the familiar confidence-inspiring cushion in a package that's half an ounce lighter Durability & Traction: Protective toe band design to shield from rocks and trail debris Vibram(R) MegaGrip with Traction Lug outsole provides enhanced grip on the ground Additional Details: Weight: 8.5 oz (242g) 31mm heel / 27mm forefoot