Caffeine Molecule - Coffee Addict Chemistry Nerd Geek Mens Hoodie Sweatshirt (Athletic Gray, 2X-Large) Go to amazon.com Related posts How to find the best cuffs and coffee for 2022? FeatureRib knit cuffs and waistbandMachine Washable DescriptionThese graphic sweatshirts are made of a fully machine washable cotton/poly blend for a warm, versatile and comfortable fit.