This 4-pack of ankle socks is totally comfy & unisex, too. Wearable & shareable for him, for her, for them. Rib-knit ankle-length cuffs. Soft-knit fabric, with comfortable stretch. Notched seams at toe and heel for added comfort. Textured logo at soles. Size 0-6M = 19-27 height; 7-17 lbs. weight. Size 6-12M = 27-29 height; 17-22 lbs. weight. Size 12-24M = 29-33 height; 22-30 lbs. weight. Size 2T-3T = 33-39 height; 30-36 lbs. weight. Size 4T-5T = 39-45 height 36-46 lbs. weight. machine wash according to the care instruction label spandex 2% polyester 70% cotton 28%