St. Barth flip flops Eu size 36-37 base on bottom of shoe

St. Barth flip flops Eu size 36-37 base on bottom of shoe Nice flip flop Used a lot , fair condition Right flip flop twist a bit plz refer to photos I will measure them but what I see seems like they are SIZE 36-37 EU Category didn’t give me the option so I paid 36 and half European size. Thanks.