I don't know what is happening to the sizing of sports shoes now. The last three pair I have bought say size l0 but they are actually a size 9. The reason I know this is that I hold the size l0 shoes I've just bought up against size 9 shoes that I've had for several years and they are the exact same size. Absolutely no difference. I've polled friends around the country and they say the same thing. We all were thinking that our feet had simply gotten bigger till I started comparing old size 9s with new size l0s. One friend said she thinks it is because these shoes are now being made in China or Taiwan and that is what is wrong with the sizing.  I have no idea. I just know it is true. I want to tell anyone interested in these particular shoes that they must buy at least a full size larger than they are accustomed to buying.  These cute Avia shoes are a very good buy at 29.99 but they are not as supportive as a more expensive shoe.  But, they are light which is nice. I like them for 29.99. I put an extra memory foam insert in them and wore them several hours on the unit at the hospital and then walked over half a mile and they were comfortable. I do like the style with the broader section across the instep. These stabilize the extensive walking I do.  I used to get something very similar in an Adidas for about twice as much money. I have ordered what seems to be a very similar shoe with blue decoration for about the same price and hope they'll be as comfortable and cute.