Children's Shoe Size Comparison ChartShoe size: 26 #, inner length 16.5cm, suitable for foot length 15-15.5cmShoe size: 27 #, internal length 17.1cm, suitable for foot length 16~16.5cmShoe size: 28 #, internal length 17.7cm, suitable for foot length 16.5-17Shoe size: 29 #, inner length 18.3cm, suitable for foot length 17.5-18cmShoe size: 30 #, inner length 18.9cm, suitable for foot length 18-18.5cmShoe size: 31 #, inner length 19.6cm, suitable for foot length 18.5-19cmShoe size: 32 #, inner length 20.3cm, suitable for foot length 19-19.5cmShoe size: 33 #, inner length 20.9cm, suitable for foot length 20~20.5cmShoe size: 34 # with an inner length of 21.6cm, suitable for a foot length of 20.5-21cmShoe size: 35 #, inner length 22.2cm, suitable for foot length 21-21.5cmShoe size: 36 #, inner length 22.9cm, suitable for foot length 22-22.5cmShoe size: 37 #, inner length 23.6cm, suitable for foot length 22.5-23cmShoe size: 38 #, inner length 24.2cm, suitable for foot length 23-23.5cmShoe size: 39 #, inner length 24.9cm, suitable for foot length 24-24.5cmShoe size: 40 #, inner length 25.5cm, suitable for foot length 24.5-25cmShoe size: 41 #, inner length 26.2cm, suitable for foot length 25-25.5cmNote: The product is in sports shoe size, usually worn in sports shoes of size 33, this product is sold in shoes of size 33, usually worn in leather shoes of size 33, and this product is sold in shoes of size 34