Please be kindly reminded that Sweet Mommy is Japanese brand, therefore our size chart runs a little small when it comes to USA sizing. Most of international customers found our M size to fit American S, L - American M and so on. We also post very detailed measurements for each item, both in INC and CM. Please, take a minute to check your measurements before ordering. Thank you for your attention and cooperation! And thank you for choosing Sweet Mommy, Japanese Family owned brand.