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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Combine clever science humor with classic fatherly wit in this hilarious “I TELL DAD JOKES PERIODICALLY BUT ONLY WHEN I’M IN MY ELEMENT” design! Featuring "JO - K - ES" styled inside colorful periodic table element blocks alongside decorative ribbons, this artwork delivers the ultimate pun for science lovers. The warm retro color palette of orange, yellow, and sage green paired with heavily distressed grunge typography gives the graphic an authentic vintage 70s look. It is perfect for chemistry teachers, science geeks, pun-loving fathers, and anyone who appreciates a smart, nerdy sense of humor.