Baby knee pads material: 80% cotton, 18% dacron and 2% spandex. And the center knee pad cushion is an extremely durable, premium material which has a guaranteed lifespan of use. A fun and useful accessory your baby will love. 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. The package come in 2 different colors: blue, green and pink. It's flexible, comfortable and lovely color, your children will like it very much. The baby knee pads are easy to wash, machine washable and dryer safe. Perfect gift for your friends who have baby.