These are very comfy, good breathing, great looking shoes, however they do run big for the women's sizing.  I (a female) wear an 8 1/2 in most athletic shoes.  These are unisex and the box said that it was a men's size 7 and also a women's size 8 1/2.  But in my experience, men's and women's shoe sizing runs 2 sizes apart.  Therefore, I sent these back in exchange for the women's size 8 (men's size 6 1/2).

These also run a little wide.  So, if you have narrow feet, these wouldn't be the best for you.

I didn't give these 5 stars because the shock absorbancy on these don't seem to be all that great for "running shoes".  Good thing I'm just going to be using them for mild impact, core strengthening aerobic classes.