Rubber soleSize- The age groups are just as reference. Please measure baby's feet first and choose correct size refer to our size chart.Material - High Quality Material, Non-Slip Rubber Sole, They also have a slight padding to the Insole, nice and cushy for little feet.Fashion - Stylish Adorable Design, focus on American style, featuring a classic Canvas Sneakers style in baby fashion. Your Little Love would Draw much Attention and Compliment.Best gift - Stylish Adorable Baby shoe is the Best Shower Gift for Baby. Great for daily use and make a perfect Baby Shower? Birthday Present.Buy with complete confidence - We strive for 100% Customer Satisfaction. If for any reason you are not satisfied, please contact us and we will take care of you.