80% cotton, 17% polyester, 3% spandex PREMIUM MATERIAL - Natural combed cotton is grown using methods and materials that have less environmental impact. It's simply a good material for your health. Strong elasticity, breathable and comfortable. These women's low ankle socks are perfect for indoor and outdoor activities WELL-MADE SHOE - Ergonomic arch support Well-made collar ensures these women's short socks fit perfectly to your feet. Not tight, not loose, soft, stretchy, quick drying, machine washable NO SLIPPING - These no-show socks feature a triple silicone heel grip technology that prevents slipping and stays in place even when worn all day long INVISIBLE WEAR - The basic colors of these women's no show socks provide a seamless look in your shoes. Suitable for women shoes like sneakers, loafers, sports/athletic shoes (Note: these socks are not super low flats for women or super low socks for fashion slip-ons) 80% cotton, 17% polyester, 3% spandex.