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/Navy 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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SEX IS LIKE MATH. Add the bed, subtract the clothes, divide the legs, and pray to God you don't multiply. A hilarious adult humor design combining math and relationship humor in a bold vintage-inspired style. Perfect for adults, couples, husbands, boyfriends, and anyone who loves clever and sarcastic jokes. A fun statement shirt for parties, vacations, casual wear, and everyday laughs.