Amazon’s latest perk for Prime members could make us more stylish by letting us buy everything that catches our eye and return what doesn’t fit. Today Amazon revealed Amazon Prime Wardrobe, which is currently in beta, but you can sign up to be notified when it launches.

First you pick at least three items, and up to 15, from more than a million Amazon Fashion options, including clothes, shoes and accessories for kids and adults, to fill your Prime Wardrobe box with no upfront cost. Brands available include Calvin Klein, Levi’s, Adidas, Theory, Timex, Lacoste and more.

Once the Amazon Prime Wardrobe box arrives, you can try on the clothes for up to seven days. Then you either schedule a free pick-up or drop the resealable box with its pre-paid shipping label at a nearby UPS to return whatever you don’t want. Keep three or four items from the box and get 10 percent off everything, or keep five or more for 20 percent off. You only pay for what you keep, with no charge upfront. Amazon Prime Wardrobe is free for Prime members with no extra fees.