The Fox River Castile Light Liner Crew Socks are ultra-lightweight liners that still manage to hold in heat with soft Merino Wool. The all-natural Merino Wool also moves moisture away quickly and effectively, eliminating the threat of blisters - which is why you should be wearing a liner on all your backpacking adventures anyway, right? Liners, which are meant to be worn between your feet and socks, serve as a friction barrier. The soft inner liner can move with your feet without bunching, which prevents those blisters that would otherwise crop up when hot spots constantly rub up against a thick sock that doesn't move. Additionally, liners help to keep your feet warm and dry on cold hikes by using the same layering principle you already apply to the rest of your body.
Stretch nylon core helps socks retain shape, wash after wash
Wool provides natural insulation that keeps feet warm
Breathable-knit construction keeps feet dry and comfortable
Fully cushioned leg and foot absorbs shock and insulates
Fabric Content: 65% Merino Wool, 34% Nylon, 1% Spandex