Welcome to our store,please read the following content carefully! About the size: Due to the size standard is different of every region,so please measure your foot length as the photo below. How to choose correct size? 1.Measure your foot length as the photo( please do not measure the insole length ). 2.Find the "US szie" from the size chart by your foot length! NOTE  : P lease do not measure the insole length,it is the different between foot length!