Duna Men's Cotton Work Crew Cushion Athletic Socks 3-pack 80% cotton 80% Cotton, 18% Polyamide, 2% Elastane 3-pairs of the athletic crew socks on pack, Machine Wash Odor Guard antimicrobial treated to control foot odor and athlete's foot. The thick cushioning give maximum comfort + the extra reinforced grey heel and toe provides for enhanced durability SIZES: Small - 9USA Medium - 10USA Large - 11USA X-Large - 12USA