I made the mistake of buying two pairs of lesser known, cheaper tap shoes on eBay, wasting $40 dollars, I could have put toward a new pair of Capezios. My daughter is a 6W, but was fitted at the original Capezio Store in NYC. She was fitted and bought a 6.5W low heeled pair there, so we knew to buy a half size up from Amazon when we couldn't get back to NYC in time.