Kenetrek has designed a lightweight sock that can multi-task, the Canyon Crew Socks. When you infuse polypropylene with Silver Technology, you get unmatched versatility. They repel water, regulate body temperature and are reinforced and padded in all the right places to avoid blisters and bunching. They are great as a hardcore activity standalone sock all year long, and they perform super as a liner in extreme conditions.SizingMedium 5-8Large 9-12XL 13-15 FeaturesRepel waterRegulate body temperatureUnmatched versatility