New. Size Medium The most comfortable socks in the history of feet. Easy everyday socks that are the unsung heroes of your sock drawer. Pink and black: 73% Cotton (Supima®) 24% Polyester 3% Elastane Merino: 78% Merino wool 15% polyester 6% cotton 1% elastane Performance: 55% Polyester 28% nylon 13% cotton 4% spandex