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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If you are a nerd, scientist, engineering, physics or chemistry student then this funny hilarious Design about the temperature scales perception is definitely for you. All your friends and colleagues will understand and laugh at this smart graphic pun joke This Fahrenheit vs Celsius vs Kelvin scale tee Design is an awesome novelty gift for engineers, scientists and other science based career professionals. They will love wearing it.