Online exclusive! Pack includes 10 pairs of athletic ankle socks. These socks are totally sporty and gender-neutral too. Wearable & shareable for him, for her, for them. Rib-knit openings. Arch support. Contrasting Old Navy logo at sole. Go-Dry moisture-wicking technology keeps them dry & comfortable. Soft-knit cotton blend, with comfortable stretch. Notched toe seams for added comfort. Size S = 11-13 shoe size. Size M = 13-3Y shoe size. Size L = 3Y-5Y shoe size. machine wash according to the care instruction label .