Havaianas Women&#39;s Slim Peacock Flip Flop,Navy Blue,39/40 BR/9-10 M US,Havaianas,4110858" /> 100% Rubber Rubber sole Brazil size 35/36 fits US Women's size 5/6, Brazil size 37/38 fits US Women's size 7/8, Brazil size 39/40 fits US Women's 9/10, Brazil size 41/42 fits US Women's 11/12. US size stamp on shoe is based on Men's shoe size