Altra Men's Lone Peak 1.5 Trail Running Shoe 100% Synthetic Imported Synthetic sole Zero Drop Platform Mountain footbed insole Asymmetrical Lacing Structure StoneGuard Sandwiched Rock Protection Gusseted Tongue Vegan Friendly Natural Ride System Two-Layer EVA midsole with AltraBound Sticky TrailClaw outsole Weight: 9.9 oz The Lone Peak 1.5 trail runner from Altra is designed to help you take on the roughest, toughest terrains in comfort.