The Sockwell Men's Plantar Cush Crew Plantar Relief Socks combine casual styling with compression and arch support to soothe and comfort your feet. Features COMPRESSION: Firm Compression around the Arch CUSHIONING: Utlra Light Cushion Materials 33% Merino Wool, 33% Bamboo Rayon, 28% Stretch Nylon, 6% Spandex Sizing: Men's M/L (Men's Shoe Size 7-10) & L/XL (Men's Shoe Size 10.5-13)