Funny Chemistry Shirt – Tell a Potassium Joke? K.-TH

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, Great gift for chemists, scientists, chemistry teachers, science teachers, chemistry and science students and enthusiasts. This science tshirt is fitted, order a size up. Nice back to school gift for your son or daughter if they are in college or high school, Lightweight, Classic fit, Double-needle sleeve and bottom hem