The Tough Mudder MaxGrit offers all-terrain traction, lightweight flexibility and the ultimate support to conquer your event. Engineered to handle any Tough Mudder obstacle, this shoe provides Mudders of all levels a trusted durability on or off the course.Speed lace closure systemsQuick-drying/easy-clean nylon upperLightweight AR Foam midsole with responsive tuningRugged outsole with dual-layer lug system for ultimate traction on varying outdoor surfacesX shaped design pattern on forefoot to ensure optimum grip at the varying angles created by uneven terrainReverse contoured heel form to eliminate friction, blisters and pressure along the achilles tendonLug height: 5 mmBrand new out box