They're microfiber for softness. Cushioned for all-day ease. Best of all, these Champion women's socks have Double Dry wicking power. Softer-than-silk yarns wick sweat, keep feet cool and dry. Strategic mesh panels add cooling ventilation. Sleek knit-in stretch helps ensure better fit. Zoned cushioning and arch support help prevent shock and soreness. NOTE: Each three-pair pack contains one pair each: pink, blue, purple details. Size 9-11; fits shoe sizes 5 to 9.