GBSELL Baby Girls Soft Sole Crib Warm Button Flats Cotton Boot Before you buy it please kindly check the Size information. Size:11----- Length: 11.5cm/5.3"----- Age:0~6 Month ----- US:2.5 Size:12 -----Length: 12.5cm/5.5"-----Age:6~12 Month ----- US:3 Size:13 -----Length: 13.5cm/5.7"----- Age:12~18 Month----- US:4 Light weight for your baby,easy to match clothes