I wear a ladies size 7 and the Youth 6 fit me perfectly. Usually I take a 5 in youth sizes. The straps were narrower than my old Tevas and I didn't like that. Also the strap across the toes fastens exactly opposite my old ones and I didn't like that either. And finally, even though I have a pretty broad foot, when the straps were fastened there was some left at the end beyond the velcro and I thought it would probably end up curling and sticking out. So I sent them back. They did have a nice footbed although my old Tevas were a foamy material and these are molded plastic. There are lines in the plastic footbed and I could feel them. Didn't like that either! I'm really picky.