These slippers did not fit me well. Initially, even though I have a slim foot and the straps are "airy," the top part hits me while walking. However, the worst part is that my foot gets very warm, it feels like I'm wearing closed shoes with no ventilation. Size 37-38 is borderline for me and I usually wear 37, so they require sizing up. However, the color and style are very nice. I would not buy them again, I prefer Havaianas even if they are not orthopedic.