Upper Material:Cotton Sole Material:Rubber Toe Style:Round toe Heel High Style:Flat-Heel Closing Method:Button Shoes Heel High:.5cm/0.6 Platform Heigh:0.5cm/0.2 Included: pair of shoes Size chart: Size:15 Insole Length:12.5cm/4.92 Recommended age:6-12 Months US:5.5 UK:4.5 EU:21 Suitable For: Size:16 Insole Length:13cm/5.12 Recommended age:12-18 Months US:6 UK:5 EU:22 Suitable For:Toddler Size:17 Insole Length:13.5cm/5.31 Recommended age:18-21 Months US:6.5 UK:5.5 EU:22.5 Suitable For:Toddler Size:18 Insole Length:14cm/5.51 Recommended age:21-24 Months US:7 UK:6 EU:23 Suitable For:Toddler Size:19 Insole Length:14.5cm/5.71 Recommended age:2-2.5 Years US:8.5 UK:8 EU:24 Suitable For:Toddler Size:20 Insole Length:15cm/5.91 Recommended age:2.5-3 Years US:9 UK:8.5 EU:25 Suitable For:Toddler Size:21 Insole Length:15.5cm/6.10 Recommended age:3-3.5 Years US:9.5 UK:9 EU:26 Suitable For:Toddler Size:22 Insole Length:16cm/6.30 Recommended age:3.5-4 Years US:10 UK:9.5 EU:27 Suitable For:Toddler Size:23 Insole Length:16.5cm/6.50 Recommended age:4-4.5 Years US:10.5 UK:10 EU:27.5 Suitable For:Little Child Size:24 Insole Length:17cm/6.69 Recommended age:4.5-5 Years US:11 UK:10.5 EU:28 Suitable For:Little Child