at the end of the season sell then at cost to the public.
On the one hand, you may then be selling last year's product--and unless you can get it here and onto the market and sold immediately, it'll be a year 'stale', warehoused somewhere till the relevant season comes up again. (There are end-of-season sales here, too.)
Second, I have a sister who has been in retail her whole working life. Besides customer-facing jobs early on, she also was a buyer for marshall fields for a number of years. She'd travel about half the year, first to europe where they'd get a good look at fashions/design, then to asia where they started ordering for the following year's merch. She ended up co-managing the big Macy's right
downtown Chicago, a store which occupies a full square block there.
And the point of that is that you have no idea how cheaply stores are buying their stock if you think that at the end of season they're selling at cost.
Also, take a look at a company called
VF Corporation: scroll down a little and you'll see that they own Northface, Timberland, Smartwool, Vans, Jansport, and Eastpak, among others. And also the ones they've sold off. These names look like brands to shoppers looking to confirm their identity with a purchase, but it's really the same company, using branding to sell to consumers.
Anyway, good luck with your project. Also, by shopping at source (SE asia), you could get ahead of any new designs coming out--e.g., if you shop there this winter, or next spring, you'll be able to get what Northface or some other brand is going to be introducing the following autumn for the winter shopping season.