Rubber Sole1. [Comfortable Fleece] - Luxurious and comfortable newborn booties are a must-have for girls and boys, keeping baby's feet warm, comfortable to crawl, and natural to walk. 2.[Non-Slip] - Polyester soft sole with anti-slip points to keep your baby safe when they start walking 3.[Hook and Loop]- Convenient hook and loop closure design, easy to put on and take off. These baby shoes stay on baby's little feet at all times, allowing the ankle to move naturally while providing great protection. 4.[Life Occasion]- These unisex baby boy and baby girl booties are great for crawling, walking, playing and also Christmas and birthday gifts for boys and girls and bath gifts for newborns . Size: 11CM/12 yards