A superlightweight fast hiker, The North Face Ultra Fastpack GTX offers best in class performance and protection with Vibram traction, a Pebax Snake Plate with energy return, and Gore Tex waterproofing. . Compression molded, dual durometer EVA midsole for cushioning and stability. Full foot Pebax Snake Plate for lightweight underfoot protection and energy return. TPU Heel Cradle technology for cushioning and support. Vibram rubber outsole for durable traction. Gore Tex waterproof, breathable membrane keeps water out and allows sweat to escape, keeping feet dry and comfortable. Water resistant minimal weight upper material. TPU quarter weld for structure. Reflective webbing for low light conditions. Reinforced toe cap protection. Women specific fitlast characteristics: Slim, no slip heel and low profile forefoot make for excellent all day use for hiking and other activities.