A weatherproof solution to moving fast on technical trails, the women's specific X Ultra Prime CS offers stability and protection in a reliable package.. . Heel foam upper with breathable textile lining and Climashield waterproof membrane to keep feet dry. Gussted tongue, mud guard, and synthetic protective toe cap protect feet from the elements and trail debris. Sensifit heel strap and traditional lacing system provide a supportive fit. Injected EVA midsole for stability. Nonmarking Contagrip rubber outsole provides multidirectional movement and traction.