We recommend ordering your standard size. When in doubt, size up.Check your baby's skin periodically as you introduce Squid Socks to them. Avoid overnight use, unless you place socks over pants/leggings. Discontinue if irritation occurs.SOCK DESIGNS: Construction, Dinosaurs, VehiclesOur baby socks are sold as a pack of three pairs, one of each design. Come with UPCs.As seen on Shark TankPatent-PendingPrints on front side only100% skin safe tested silicone dots on INSIDE cuff gently hold socks onSilicone grips on the bottom of sizes 6-12, 12-24 and 2T-3T help to prevent slips and fallsUnrivaled image quality via dye-sublimation"Squid Fit Technology" elastic bands in the cuff and around the top and bottom arch Printed and assembled in the USA80% polyester, 12% nylon, 6% rubber, 2% spandexOEXO-TEX Standard 100CPSC Safety Compliant