This style fits with ease. RUNS SMALL ORDER SIZE UP! This designer inspo slide, made of rubber, also features a comfortable anatomic insole embossed with the clover pattern. Lightweight, flexible outsole. Example. I’m a 8.5/9 US I got the size 10. We recommend that you go up a size. Since we only carry whole sizes. Ordinarily I’d go up to a 9 because of the 8 1/2 size but in this case the recommendation is a size up I went with the 10.