Ingeniously designed, this soft and stretchy set stays hidden for effortless wear. Hidden soft non - slip grip at inside heel., Imported:, Fabrication: 61% Nylon 39 Spandex, Garment Care: Machine Washable Loft Ballet No Show Sock Set Black Women's by Loft Size Regular - One Size Black Women's Socks, & Tights 61% Nylon 39% Spandex Machine Washable