Upper :PU Sole :Rubber Toe :Round toe Heel High :Flat-Heel Closing Method:Button Shoes Heel High:2cm/.8 Platform Heigh:1.0cm/.4 Included: 1 pair of shoes Size chart: Size:16 Insole Length:11.5cm/4.53 Recommended age:0-6 Months US:4.5 UK:3.5 EU:19.5 Suitable For: Size:17 Insole Length:12cm/4.72 Recommended age:6-9 Months US:5 UK:4 EU:20 Suitable For: Size:18 Insole Length:12.5cm/4.92 Recommended age:9-12 Months US:5.5 UK:4.5 EU:21 Suitable For:Toddler Size:19 Insole Length:13cm/5.12 Recommended age:12-18 Months US:6 UK:5 EU:22 Suitable For:Toddler Size:20 Insole Length:13.5cm/5.31 Recommended age:18-21 Months US:6.5 UK:5.5 EU:22.5 Suitable For:Toddler Size:23 Insole Length:14cm/5.51 Recommended age:21-24 Months US:7 UK:6 EU:23 Suitable For:Toddler Size:24 Insole Length:14.5cm/5.71 Recommended age:2-2.5 Years US:8.5 UK:8 EU:24 Suitable For:Toddler Size:25 Insole Length:15cm/5.91 Recommended age:2.5-3 Years US:9 UK:8.5 EU:25 Suitable For:Toddler Size:26 Insole Length:15.5cm/6.10 Recommended age:3-3.5 Years US:9.5 UK:9 EU:26 Suitable For:Toddler