Sunfei &reg; Summer Platform Sandals Beach Flat Wedge Patch Flip Flops Lady Slippers Canvas Weave & EVA Size 36==US Size==5==Width==9.0cm/3.5" ==Insole Length==23cm/9.04" Size 37==US Size==6==Width==9.2cm/3.6"==Insole Length==24cm/9.44" Size 38==US Size==7==Width==9.5cm/3.8"==Insole Length==25cm/9.82" Size 39==US Size==8==Width==10cm/3.9"==Insole Length==26cm/10.21" Please compare the detail sizes with yours before you buy!!! Use similar shoes to compare with the size. Thanks!!!