Just got these in the Black/Purple combo. Have to say I was surprised how much smaller Ryka's size 9 is in this style, I have the Studio Flex Low and that was a much bigger 9. Considering this is hi-cut and has a strap across the forefoot you'd think it would be bulkier but it's very steamlined looking and the toe is much pointy-er than pictured. One thing too is it's a very lightweight shoe due to it's Ortholite material.

 As to fit, it's a snug fit for now, but not in a bad way, hope to break it in some more and loosen it up as it's still kind of stiff. Since I haven't used it for any group class yet, particularly Zumba, I can't rate it yet as to comfort or performance, will get to that when I do, hence the initial review. For now, I like it's looks, pretty funky and light on the feet.

Update:

  Well I dunno why it took me long enough to try these out for Zumba, cos these are perfect! Lightweight and goes through all those twists and turns with such ease it's amazing! I think the black color sort of put me off as I am not used to black trainers, have to wear mostly black with these, makes it a very club-y look, and I love that. But it's currently a blistering summer here in the Philippines and black's too warm, even in gym clothes and in a.c. conditions.  I need these more now since I injured my heel spur and the high cut style really stabilizes my ankles well for Zumba. Now that I've worn them more, it's also beginning to stretch out a bit too, and the stiffness, due to it's plastic parts, is slowly going out of it. But I would order a half size up if you have medium width feet like mine. If yours is narrow like the above reviewer's is, then you don't have to. Great Zumba shoe, highly recommend!