The soft, ring-spun cotton of this t-shirt is also long-lasting. With a classic fit and seam-free body, you'll want to wear it every day. 100% soft ring-spun cotton (Sport Gray is 90% ring-spun cotton, 10% polyester; Dark Heather is 65% polyester, 35% cotton.) Modern classic fit Tubular body Double-needle sleeve and bottom hems Taped neck and shoulders Ribbed collar Wash cool, hang dry or tumble dry low Cool iron inside-out

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Show off your science side with this witty “Plants Respire” design. Perfect for biology teachers, students, environmentalists, and plant lovers. Great for classroom wear, Earth Day, science fairs, or daily nerd humor with an eco-friendly twist, Ideal for those who love science jokes and want to educate without saying a word. Whether you’re into photosynthesis, respiration, or just enjoy correcting people, this is a clever way to wear your inner biology nerd with pride and style.