Rubber soleHeel measures approximately 4.72 inches"Size- Please measure your baby 's feet to match the shoes's sole length, the age is just for reference.High Quality- These Baby Sandals made of Premium MaterialSoft, Breathable and Comfortable. Lightweight and Flexible to Support Natural Foot Movement.Non-Slip- Flexible and Slip Resistant Rubber Outsole for a Pleasurable and Safe Walking Experience.Easy wear- Hook and Loop Closures Design Infant Sandals can be Easily Adjusted to fit your baby, and most importantly, stay on your child's feet.Fit for Many Occasions- Adorable Baby Girl Sandals Design Great for daily wear, Indoor and Outdoor activities, Baby Sandals for Dress, Party, Holiday, Wedding. And Make a Perfect Baby shower, Birthday Gift.