SmartWool's PhD Cycle mini socks are lightweight, highly breathable, moisture-wicking and feature ReliaWool technology for added durability. Itch-free merino wool is temperature regulating, moisture wicking and odor resistant 4-Degree Elite fit system uses two elastics for improved stretch and recovery ReliaWool technology in the heel and toe provides long lasting protection in high-impact areas Ribbed arch band for support Flatlock toe seams Ultralight cushioning Limit 12 per year Lightweight Height: Ankle Made in United States of America (imported yarns) US shipments only SmartWool PhD Cycle Pattern Socks - Merino Wool, Quarter Crew (For Women) in Capri