NWT Lululemon MacroPillow Crew Socks Color: White Size: Medium Designed for Running Naturally breathable mesh construction in high sweat areas helps keep your feet cool and dry The yarn in these socks was treated with No-Stink Zinc™ to inhibit the growth of odor-causing bacteria Crew Length 3D-knit PerformaHeel™ creates a shaped fit and locked-in feeling MacroPillow™ medium cushioning Left and right toe construction for a comfortable fit Reflective details 93% Nylon, 6% Elastane, 1% Polyester NEW WITH TAGS. Still in package.