You're not doing me a favor by buying this stuff. I'm doing you a favor by selling it.
All shirts are 100% preshrunk cotton tees with high quality screen prints (these last longer than shitty heat transfers, breathe more easily, and you won't get that ugly border that you would with a crappy iron-on if you do it yourself).
All stickers glossy and coated with a UV protection film to help prevent fading. Don't bother buying these stickers if you drive a shitty car, I don't want you lowering the value of my stickers with your car.