As children transition from crawling to walking, their comfort and safety is important. That's why Nuby Snekz are made to be as comfortable as socks and as durable as shoes. Check Snekz for comfortable, snug fit, to ensure correct sizing. Packaging shows sizing guidelines and use instructions. Flexible, slip-resistant bottom makes movement easy and helps keep baby safe from falls while soft upper forms to baby's foot for a cozy fit. Made with lightweight, breathable materials, Snekz won't slow baby down. Machine washable - place Snekz inside laundry bag on cold setting and gentle cycle. Air dry or place in dryer inside a laundry bag on tumble dry low, delicate cycle. Do not iron.