Spreadshirt Ban Dihydrogen Monoxide Men's Premium T-Shirt Designed and printed in the USA. If you're a fan of chemistry with lots of gullible friends, this design is just what you need to see if they're in on the joke! Design reads "Ban dihydrogen monoxide" with an image of a beaker full of mysterious fluid. The perfet design to mess with 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 and a Spreadshirt recommended product. 100% cotton (except for heathered colors); Fabric weight: 5.29 oz (heavyweight). For best results and to maximize durability machine wash cold, inside out and tumble dry on low heat. Official sizing (width x length measured in inches): S (18" x 28") | M (20" x 29") | L (22" x 30") | XL (24" x 31") | XXL (26" x 31.5") | 3XL (28" x 32") | 4XL (30" x 34") | 5XL (32" x 35").