Decription of The North Face Momentum - Women's The Momentum is ideal for the range of fast-moving outdoor activities, with a lightweight feel, breathable upper and a superior traction rubber outsole. Features: Approx Weight : * [1¼2 pair] 10 oz (278 g) [pair] 1 lb 4 oz (556 g) *based on Women's 7 AgION Antimicrobial: A silver agent woven into the footbed inhibits the growth of odors and disease-causing bacteria. UltraTAC™ Rubber Outsole Compound: Proprietary traction system that grips in wet and dry conditions. X-2™ Cushioning: Embedded in high impact areas, the heel and/or forefoot areas, lightweight, durable X-2™ cushioning ensures a well-cushioned ride and enables an energy-efficient stride. Evans Outsole Construction: Outsole construction ideal for hybrid tracks (road/trail). Features lightweight construction, blown rubber crash pad in the forefoot and roll control. Ideal for the range of fast-moving outdoor activities, with a lightweight feel, breathable upper, and a superior traction rubber outsole. UPPER Ultra lightweight synthetic nubuck upper Highly breathable, open-cell air-mesh Gusseted tongue BOTTOM Lightweight injection molded EVA midsole AgION™ antimicrobial X-2™ footbed TPU shank with forefoot protection plate Multi-directional UltrATAC™ rubber outsole