Material: Soft safety Cozy Fleece material. Warm, Comfy, Soft Bottom and Lightweght fit for pre-walker, crawling, Learning to Walk. Non-Slip & Flexible: These Baby Winter Shoes used quality sturdy rubber sole with excellent non-slip resistance.When your baby walk on any humid surfaces without the fear of dropping off. Great for indoor, outdoor activities in cold weather. EASY WEAR: Hook and loop straps closure design is easy on and off, stay on your baby's feet and never fall off. Suitable for chubby feet or high insteps. Versatile Application: These baby slippers for boys girls can match any outfits. Suitable for indoor, outdoor, study, garden, street, park, etc. Its a perfect birthday, winter Christmas Gift. SIZE TIP: We suggest measuring your babys foot length before you choose the size. Size 12 inner length 10.5cm, Size 13 inner length 11.5cm, Size 14 inner length 12.5cm.