NIKE SFB Socks NIKE's SFB Socks are designed to provide long-lasting comfort and support in any climate and on any mission. The unique wool and synthetic blend promotes superior breathability within the shoes or boots to regulate heat and keep feet dry. There is targeted support placed at strategic points along the heel and forefoot to protect injury-prone areas. The overall anatomical cushioning provides impact protection and shock absorption without adding weight to the socks. The flat toe seam and ultra-soft fabric make for a comfortable, athletic fit, while the compression fit delivers maximum support when engaging in physical activity. For a pair of socks that keeps you warm, dry and protected, NIKE has you covered. Features of NIKE SFB Socks 30% nylon / 11% wool / 56% polyester / 3% spandex material Anatomical cushioning Reinforced rib cuffs Thermolite warmth technology High-density cushioning zones Machine-linked flat toe anti-chafe seam Compression fit Machine washable Multiple quantities available- contact to bundle