Go to Recreational Outlet. Recreational Outlet It is across the street from Kirkhams (which is another great store. Kirkhams The great think about Kirkhams is that they are a Western Mountaineering dealer. And, of course, there is Sportsmans Wharehouse. Recreational Outlet is probably the cheapest. Just look for non cotton clothes that have an SPF rating on them. You can even find them at Sports Authority, Dicks, and Big 5.
I've taken a vow of poverty. To annoy me, send money.