Actually if you did a subscription based service, almost like a BirchBox, that may work better. The customer sends in the first set of clothes, you get measurements, and now you know size and style. From there each month you send them a clothing package with suggested items. They can either wear them for a bit and return (Netflix type model) or purchase at a discounted rate from you.

This is essentially the model I wanted to start off with; Having the measurements and style of certain customer in a subscription business, gives you the luxury of continually learning a customer's taste and sizing creating a nice hedge to competitors and a healthier customer lifetime value.