Elasticized no-show openings. Soft-knit fabric, with comfortable stretch. Go-Dry Cool wicking technology helps keep you cool, dry & comfortable. Arch support. Zoned cushioning. Notched toe seams for added comfort. These socks are made with 18% recycled polyester fibers. Less waste in the world?? S/M: Shoe sizes 5-8. L/XL: Shoe sizes 8-11. Machine wash warm, gentle cycle. Tumble dry low. spandex 3% polyester 18% cotton 77% other fiber 2% .