Material: Elastic fabric baby knee pads made of breathable and absorb sweat cotton, has great coverage and not easy to slip, breathable, absorb sweat and soft to wear Stretchable Design: One size fit most babies; these baby knee pads are elastic and fit perfectly on knees, usual for 6-24 month baby Cotton Anti-slip Design: Designed with Non-slip rubber in the knee position, keep your child safe from wounds, scrapes, bruises and irritations when they are crawling and learning to walk Function: It not only can protect knee, ankle, elbow, but also can keep warm and absorb sweat Good Gifts: These crawling leg warmers are wonderful presents for a newborn baby present