Detailed Size Information: 9M US Toddler -- Sole length -- 6.19M to 6.38 in US Toddler -- Sole length -- 6.49 Inch 8 M US Toddler -- Sole length -- 6.69 Inch 9 M US Toddler Sole length -- -Sole length Kid -- Sole length -- 8.07 Inch 2 M US Little Kid -- Sole length -- 8.26 Inch Please refer to the size chart when select the size. If there have any question about this item, pls just feel free to contact us. We have customer service online 7 days a week.