Darn Tough Crew Socks Sold Out Darn Tough Crew Socks Guaranteed For Life by Darn Tough. No strings. No conditions. For life. Material: 1618 - 63% Merino Wool, 34% Nylon, 3% Lycra. 1674 - 67% Merino Wool, 30% Nylon, 3% Lycra. 1696... View Product →