Go to any supplement store besides GNC and maybe Vitamin World, and you're likely to find them. The stores get the shirts for free, some sell them, and some will just give them to you if you ask. I have a buddy who's got a whole collection of supplement company's shirts and shorts and stuff. I personally don't wear the stuff, but you should be able to find them someplace. Try Latham. If not for the shirts, at least there are some nice girls there.