Adidas Terrex Fast X GORE-TEX Women's Trail Walking Shoes - AW15 Outdoor-specific FORMOTION Unit - For enhanced motion control and downhill comfort. High-Abrasion Mesh and Synthetic Upper - Providing breathability and durability. Full-forefoot ADIPRENE+ - Enabling you to maintain propulsion and efficiency. GORE-TEX - Waterproof and breathable lining. TRAXION Outsole - Ensuring maximum grip during fast and athletic hikes in rugged terrain.