71.5% Cotton, 24.7% Polyamide, 3.8% Spandex Elastic closure Hand Wash Only ★Fits US women's shoe sizes 5-6.5 (8.5"-9.05"), US women's shoe sizes 7-7.5 (9.25"-9.38") and US women's shoe sizes 8-10 (9.5"-10.2") (Rayon+Nylon+Spandex). Machine Wash Or Hand Wash Recommended. ★NO SHOW: No show liner socks stays hidden underneath your stylish footwear that you want to show. ★NON-SLIP PAD: bombas no show socks for women with 5 silicone heel grip technology ensures non-slip and your no show socks stay put all day long. ★COMFORTABLE: These no show socks womens will keeps your feet dry and comfortable for casual wear. ★ BREATHABLE & SKIN CARE: High quality Rayon no show socks are made thin, light and breathable to give extreme comfort. You'll forget you are wearing them.