PEDS Women's Dress Crew Socks, 6 Pairs Black, Kakhi: 97% Polyester, 3% Lycra Spandex; Navy, Khaki: 62% Nylon, 35% Polyester, 3% Lycra Spandex; Navy: 65% Nylon, 32% Polyester, 3% Lycra Spandex Imported Machine Wash Lightweight crew socks that hit above the ankle Lycra fiber offers the ultimate in comfort and fit Convenient six pair pack Satisfaction guarantee-if you are not completely satisfied with your PEDS product, simply return them to us for replacement