7. Designs that don't even exist are offered
Did you know Givenchy offers its most popular T-shirts in a variety of colors? You didn't? Oh right, because they don't. Shops that carry labels like Givenchy, like SSENSE, offer a full range of products every season, so you can see what actually came out to shops from the runway. Meanwhile, it's not like you can look up a designer collection by lookbook or runway photos. This is an easy way of judging whether or not a shop is legit.