These Lady Comfort Sandals have a comfy and cushioned sole for all day comfort. Very popular with the strap around the back to hold the feet nicely in the sandal and making Kailey a perfect all occasion sandal.European sizing so 36 (6), 37 (6-1/2 to 7), 38 (7-1/2 to 8), 39 (8-1/2), 40 (9), 41 (9.5 to 10)