I saw a documentary about this once. At least I think it was a documentary. I was only 5, so I don't remember too well.

This premium T-shirt is as close to perfect as can be. It's optimized for all types of print and will quickly become your favorite T-shirt. Soft, comfortable and durable, this is a definite must-own.

Brand: Spreadshirt
100% cotton (heather gray and heather ice blue are 95% cotton /5% viscose. Heather blue & charcoal gray are 80% cotton/20% polyester. Heather burgundy is 60% cotton/40% polyester. Heather oatmeal is 99% cotton/1% viscose) | Fabric Weight: 4.42 oz (lightweight)
Wide range of sizes from S-5XL
Fairly produced, certified and triple audited.
Double stitched, reinforced seams at shoulder, sleeve, collar and waist
Optimized for beautiful brilliance across all printing methods
Imported; processed and printed in the U.S.A.

Fact: Clowns Eat People