Chemistry Is Like Cooking (But Don’t Lick The Spoon) Funny Science Tee Shirt 4.2 oz., 100% airlume combed and ringspun cotton, 32 singles Athletic Heather and Black Heather are 90/10 airlume combed and ringspun cotton/polyester Ash is 99/1 airlume combed and ringspun cotton/polyester Alternate Heather CVC/Blend colors are 52/48 airlume combed and ringspun cotton/polyester Heather [More]