Note:Neither the US size or EU size are based on the development of feet length.so you need to accurately measure feet length.and then refer to the size chart to choose the correct size .If your foot length is 23cm, Please choose size 5.5=36If your foot length is 23.5cm, Please choose size 6=37 If your foot length is 24cm, Please choose size 6.5=38 If your foot length is 24.5cm, Please choose size 7=39 If your foot length is 25cm, Please choose size 7.5=40 If your foot length is 25.5cm,Please choose size 8=41 here. If your foot length is 26cm, Please choose size 9=42 here. If your foot length is 26.5cm,Please choose size 9.5=43 here. If your foot length is 27cm, Please choose size 10=44 here. If your foot length is 27.5cm,Please choose size 10.5=45 here. If your foot length is 28cm, Please choose size 11=46 here. If your foot length is 28.5cm,Please choose size 12=47 here. If your foot length is 29cm, Please choose size 13=48 hereNote:Usually, order comes without shoes box,only a pair of shoes.But if you need a box, please contact us to increase price,the shoes box values US$5.