What's it do? We went down to the yarn level to make our fastest-drying socks ever. The fabric evenly disperses moisture, allowing sweat to evaporate more quickly, so you'll run lighter, drier, and cooler. Product DNA - Ultra-light & fast drying ArmourDry® yarn technology improves the performance of your shoe - Evenly disperses moisture, allowing sweat to evaporate faster for a lighter, drier & cooler run - Energy return cushioning on ball of foot & toe for added protection in high-impact areas without added bulk - Locked-in fit design keeps sock securely on heel for an adjustment free fit that won't fall down - Seamless toe delivers superior comfort & reduced irritation - Odor control technology reduces odor in the sock - Left/Right specific fit & design - Regular - Style #: 1387046 - 3 pairs of socks - 94% Polyester/6% Elastane - Imported