I don’t really get it either. My girlfriend is always buying clothes online and then sending them back to get a different size, same w/ shoes. I’m not buying clothes I haven’t tried on; even if they fit, they may look like shot on me. I can’t say how may times I’ve seen something on a mannequin or the rack and thought “Ooooh, I love that!”, only to find that while it may look good on the mannequin (w/ no boobs), my bustier physique makes it look not-so-good.