Where is the cheapest place to get a north face?

Any store or website that is authorized to sell that brand. What you want to look for are discontinued styles and colors. Those will be the items that go on clearance, so you can find good deals on them. You can also get counterfeits (fakes) for pretty cheap, and there are tons of websites selling counterfeits (just be careful, the shipping cost is usually crazy because often they come from China, and trying to return anything is like pulling teeth).