Going Through a Phase Moon Astronomy Teacher Science T-Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 58% Cotton, 42% Polyester Imported Machine wash cold with like colors, dry low heat This play on words shirt is a good to have in the wardrobe of any scientist, astrologist, astronomer, astrophysicist, stargazer, or astronaut. It's also perfect for a boy or girl who loves, astrology, astronomy, stars, starships, science fiction, or space camp. Regardless if you study the moon or the stars for work, this tee is great to wear to school, work, the library, museum, planetarium, coffee shop, bookstore, parties, or the gym. Anyone who enjoys reading, studying, stargazing, books, stars, planets, the moon, or telescopes will enjoy this t-shirt. This premium t-shirt is made of lightweight fine jersey fabric Fit: Slim (consider ordering a larger size for a looser fit)