This review/rating is based on the fact that I purchased these with hopes they would be good for my Zumba classes.  So do not take note of this review if you are looking into it for it's true purpose of a Jazz shoe.  As much as I liked them for style, comfort, and flexibility, they did not meet my needs when it came to support. Our Zumba class does quite a bit of hopping, jumping, stomping, etc. and I just did not get the cushion/support I like/need for those movements.  They were great for the the twist, swivels, and basic dance moves but when things got jumpin', they fell short for me.  As for sizing, I normally wear an 8.5 in a street sneaker and a 9 in dance shoes, this particular sneaker I got an 11 and they fit just right.