The North Face Women's Rucky Chucky Trail Running Shoe is a high-performance, long-distance mountain-running shoe with enhanced support and traction. Weight: 1/2 pair: 12.3 oz (350 g) pair: 1 lb 9 oz (700 g) North Face Rucky Chucky Features: [UPPER] Abrasion-resistant, bomber synthetic nubuck Highly breathable, protective sandwich-mesh upper X-Frame™ medial/lateral TPU welding reinforcements for support Northotic™ ergonomically-designed footbed with Poron® forefoot and heel inserts [BOTTOM] Lightweight, dual-density, compression-molded EVA midsole with X-2™ provides high-impact cushioning and long-lasting support Semi-straight lasted, with medial-posted rearfoot Thrust Chassis™ and X-Dome™, which provides mechanical assistance to the midsole and support for overpronators Innovative TPU forefoot Snake Plate™ with medial/lateral outriggers provide torsional support, while giving ultimate protection from stone bruising Midfoot shank ensures a stable and comfortable ride from heel-strike to toe-off Tenacious Grip™ outsole provides excellent on- and off-road traction, as well as stability and durability under a variety of weather conditions and temperatures Proportioned specifically for the female athlete, a high-performance, long-distance mountain-running shoe with enhanced support and traction.