I think this strategy is untenable for almost all of the designer brands in the market you're addressing, because the assumption of all the risk is not a good business model in any industry.
Let's look at VC for a moment. Having been involved in it, there is an obsession with risk analysis and reduction, and with good reason. A model that says "Let's take 100% of the risk and capture the margins!" probably can't support a whole market shift, and would probably be difficult to fund. And funding of some kind would be necessary for most brands to be able to stock goods.
You're very knowledgeable about the back-end of the apparel business, it was cool to see a story like this on the front page of HN.