fits like a glove, really. it's snug around the heel and middle of the food, good support, and roomy in the front. it's super light too. got the calypso color, which I thought was yellow and blue, but the yellow is actually more of a green. I am also glad I got a size 7, my usual size, instead of following the advice here to get a size up. it fits me a bit loosely up front, even with socks, but I like it like that.