I had my first pair of Heelys when I was maybe 7. I decided now at 24 that I had to have them again lol. Im usually a woman's 6.5 and sometimes 6 depending on the brand. For me if I did a 7W, I know it would be too big for my 6.5 size foot and it could be harder to roll around. I ordered the 6W and they fit great and I still have some space in front of my toes. The style and color can go with any outfit which I liked . The shoe is comfortable and easy to get use to.