Description of The North Face Endurus XCR Boa - Women's The Endurus XCR Boa is lightweight and ideal for running trails, dirt track and the occasional short stretch of road, with waterproof, breathable Gore-Tex® XCR® and the innovative and adjustable Boa® lacing system. Features: Approx Weight : * [1¼2 pair] 13 oz (380 g) [pair] 1 lb 11 oz (760 g) *based on Women's 7 Last : Trail Running Avg Weight : 1 lbs 10 oz (737 g) Northotic™ Anti-Microbial Footbed - The Northotic™ is a multi-density footbed that provides enhanced stability, support and cushioning on the trail. AgION Antimicrobial - A silver agent woven into the footbed inhibits the growth of odors and disease-causing bacteria. Flight Series™ - Developed for multisport athletes, the Flight Series™ features ultralight, multi-purpose apparel, equipment and footwear. This athlete-tested performance collection is designed for done-in-a-day and weekend adventures when fast and light packing is paramount. X-2 O2™ Cushioing - Ideal for the varied uses of the multisport athlete, the X-2 O2™ heel air bag provides an added measure of cushioning and protection for the athlete moving fast over rugged terrain. UltraTAC™ Rubber Outsole Compound - Proprietary traction system that grips in wet and dry conditions. Gore-Tex® XCR™ - The most durable, waterproof, breathable fabric available, Gore-Tex® XCR™ makes a shoe breathable, durable, waterproof, and lightweight Boa® Lacing System - Unlike traditional lacing systems, the carefully engineered Boa® system enables minute adjustment for optimum closure force each and every time, and enables simple, on-the-fly adjustment. With the Boa® there are simply no pressure points. Instead, it operates like a special suspension system that enables the runner to dial in an even and repeatable tightness. Roll Control™ - Roll Control™ technology uses a higher density heel wedge to prevent rolling. Lightweight and ideal for running trails, dirt track, and the occasional short stretch of road, with waterproof, breathable Gore-Tex® XCR® and the innovative and adjustable Boa® lacing system. UPPER Boa® multi-adjust lacing system Gore-Tex® XCR® waterproof, breathable membrane Abrasion-resistant, bomber synthetic nubuck and breathable sandwich-mesh upper Gusseted tongue Heel X-2 O2™ air pod Blown-rubber forefoot crash pad Injection-molded TPU shank plate Ultra lightweight perimeter UltrATAC™ rubber outsole