Larger by one size. I am a size 7 in shoes with socks, so 6 1/2 without. You should order a size smaller and they will be just right. They stay on better if you tighten the string in the back. Color was exact. Relatively comfy, soles were no good though. Wearing them once in and out of the water, the soles came apart. But hey, if you only need them once or twice then it would be ideal!