Love, love, LOVE these!  I have ordered 3 other brands (all similar makes), but none fit like these.  I am a woman who almost always wears a 8 1/2 wide.  I also wanted the black and white look, not ones with the rainbow ribbon down the middle.  I ended up getting these "men's" since I wasn't having luck with the women's, and they are PERFECT!!  So glad I tried it, and the price was at least 25% less than any of the other brands.  There is somewhat of a "narrow" sole, so to speak.  Not completely flat across the bottom, but maybe has to do with draining?  I have not yet worn them in the water as our Cruise is in two weeks, but do love the feel currently.