CafePress - NaBro - Funny Chemistry Joke - Men's Light Pajamas - Unisex Novelty Cotton Pajama Set, Comfortable PJ Sleepwear 100% Cotton Our super soft pajamas are 100% cotton and breathable for your sleepwear comfort. Unisex bottoms fit loose with a string waist and no fly (black plaid and lumberjack prints are cotton flannel, all others cotton jersey), and the tops are 100% cotton crew neck shirts (size up in doubt). The graphic tee designs are professionally printed, so your unique design will look great and make someone smile with the funny, cute, vintage, or expressive artwork. Surprise your special person with these PJs as the perfect gift for men or women on Valentine's Day, Mother's Day, Father's Day, birthdays or Christmas. Machine wash cold inside out with like colors and tumble dry low for easy and convenient care. TOP AND BOTTOM MAY SHIP SEPARATELY. We offer 100% money back guarantee, so you can buy with confidence. Your satisfaction is our promise, and returns/exchanges are made easy. IMPORTED.