FoxRiver Outdoor Wick Dry Woodsman Heavyweight Thermal Boot Socks 53% Thermolite polyester/21% nylon/14% worsted wool/11% acrylic/1% spandex Made in US DON'T LET THE COLD KEEP YOU OUT OF THE WOODS: Put innovation on your side with these heavyweight mid-calf boot FoxSox; built for the avid woodsman TOASTY THERMOLITE TECHNOLOGY: Lightweight fiber providing breathability and warmth while moving moisture away from the foot; combines a thermally efficient polymer and a micro-tested hollow core that heats quickly and retains warmth MADE TO LAST: Heel and toe are reinforced with nylon to add durability and longer sock life PINNACLE OF COMFORT: Smooth, flat toe seam doesn't rub or irritate during wear; adds durability so it stretches every way you do without unraveling BACKED BY COMPANY STANDARDS OF EXCELLENCE: Fox River products are guaranteed against manufacturing defects for one year; products may be returned within one year with the dated receipt to the store where you purchased them or by following our FoxSox.com return process