lightweight and responsive with killer traction the Mountain Masochist is Designed for the off-road runner who wants exceptional fit, performance and waterproof. The Gryptonite outsole combines with full foot Trail Shield™ for under foot protection from rocks and trail debris. Light and breathable hydrophobic mesh upper with gusseted tongue keeps dirt out and feet cool. Features: Gore-Tex waterproof lining Gryptonite™ outsole Full foot Trail Shield™ Lightweight compression molded EVA midsole Gusseted tongue construction Webbing and strap closure system provides exceptional fit and comfort Light and breathable hydrophobic mesh Style # GL2118