Havaianas Flip Flops Top Graphite Size 39/40 Brazil size 35/36 fits US Women's size 5/6, Brazil size 37/38 fits US Women's size 6.5/7.5, Brazil size 39/40 fits US Women's 8/9, Brazil size 41/42 fits US Women's 10/11. Note: Size stamp on shoe is incorrect. The tag will have the accurate US size conversion.