Just got these today - initial reaction, wow !! these are super cute !!!

I wear a true size 10 in everything - and my foot just barely matches the sole. Would suggest ordering up a size if you have even average width feet, or if your feet tend to swell in the summer heat. If you have skinny, narrow feet, you're going to love these.

The part that goes between your toes is a nice, soft, thick cotton - think athletic shoelace. The soles really do have squishy comfortable built in arch supports - amazing !! It's almost like that memory foam on mattresses.

I'm thrilled with the look and price of these, i'm going to get a few more pairs, but will be ordering up a size.