MediPEDS Men's 4 Pack Diabetic Quarter Socks 42% Polyester, 40% Cotton, 14% Polyester, 2% Nylon, 2% Lycra Spandex Imported Machine Wash Coolmax keep feet dry Non-binding funnel top Cushion sole protects feet Lycra spandex offers the ultimate fit and helps hug feet, reducing slippage which could cause blisters