Patagonia's tallest lightest-weight socks for climbing and trekking in an alpine environment.

Our tallest lightest-weight socks for climbing and trekking in an alpine environment. The combination of Capilene® polyester inside with nylon outside speeds moisture transport and increases durability; a touch of spandex keeps the fit snug. Vertical channels over the foot dissipate heat and the innovative rib-cuff design is nonrestrictive and prevents socks from sloughing into boots. Excels as both a liner sock for extra warmth in cold conditions or alone in hot and humid weather.