The baby ankle sock adopts anti slip design, creating a good grip and support your kids when they begin to crawl; In addition, the ankle with elastic makes the sock easy to put on or take off, also provides a smooth feel for the soft skin of babies and protects kid's sensitive feet. Design Of High Elastic Sponge: Very breathable, absorb sweat, deodorization durable and soft to wear.Protect the baby's knees from bruises and scrapes when they are curiously crawling and learning to walk. Soft Little Leg Warmers & Elbow Pad: Made of premium material 80% cotton, 20% spandex which has strength, durability. Not bulky and easy to wear. They stay on baby knees, wouldn't slide down. Easy to wash, put them in the dryer and do not shrink. Perfect Dimension: Fits well for any babies, Usual for 3-36 Months Baby, Kneepads circumference approx 5.9 Inch (unstretched); overall dimension 5.3 x 2.8 Inch (L x W). Very stretchy, work well with any size baby instead of being tighten. ADJUSTABLE FIT: Fits well with the elastic grip and allows blood circulation in the knee region. Comfortable elastic allowing you to adjust the fit as your baby grows avoiding strangle or slip-offs. Multicolor & Perfect Gift: It is not only available just one pair but actually five pairs and which is of different colors, very colorful! Perfect gift for your friends who have baby to show how much you care about them.