Congrats—you just nailed your Father's Day gift for another year running. We respect that you want to let dad know how awesome he is, after all, if it were up to mom, you probably wouldn't be here to tell the tale... 75% Cotton, 23% Nylon, 2% Spandex Product size: L/XL 10-13 (Women's Shoe Size 10.5+ and Men's Shoe Size 9-13)