FoxRiver Cross Terrain Basecamp Ankle Socks 42% Nylon/28% merino Wool/28% Acrylic/2% Spandex Made in US These lightweight outdoor ankle socks feature our WICK Dry moisture management Technology and are made from soft Merino wool Breathable mesh: vented panels help move moisture away from the foot to keep you Dry and comfortable Spandex support: Spandex arch and heel pockets help ensure a superior fit all day Nylon reinforced: nylon reinforces the heel and toe to provide long-lasting wear resistance Made in the USA, our exclusive urfit system provides long lasting support for adventure and all day wear