Yaktrax Summit

Dick's Sporting Goods says:
For heavy-duty traction on winter hikes or backcountry excursions, trust your footing to the Yaktrax® Summit traction device. Its triangular carbon steel spikes cut into packed snow and ice for aggressive grip, especially on sloped planes, making their perfect for climbs and descents. SIZE CHART: Small (S): Women's 6.5-10 / Men's 5-8.5 Medium (M): Women's 10.5-12.5 / Men's 9-11 Large (L): Women's 13-15 / Men's 11.5-13.5 Extra Large (XL): Women's 15.5 / Men's 14+ DESIGN: Provides aggressive traction on packed snow and ice Natural rubber webbing easily stretches over most shoes and boots BOA® Closure system provides a quick, secure fit Compact design easily stows in included storage bag DURABILITY & TRACTION: Triangular 3/8'' abrasion-resistant carbon steel spike design grips sloped surfaces Welded stainless steel chain link Segmented sole plates flex with foot movement and break up snow buildup ADDITIONAL DETAILS: Best use: Backcountry hiking 90-day limited warranty Weight: 17 oz per pair