This variety pack includes one pair of each color: white, khaki, and black. The 20-30 mmHg is clinically proven to ease pain from swollen feet and ankles, discomforts from spider or varicose veins, and alleviate the feelings of hot, achy legs. Features: Medically approved 20-30 mmHg graduated compression to aid tired, achy legs Advanced moisture transport of Coolmax to keep feet dry and comfortable Additional thickness around the entire foot area gives a new level of comfort in a support sock Made in the USA Fiber Contents: 65% Coolmax / 9% Spandex / 26% Nylon