The Official T-Rex tee worn by Sheldon Cooper on The Big Bang Theory. No BBT fan's wardrobe is complete without this staple from Sheldon's closet. To see Sheldon in action wearing our T-Rex tee watch the following episodes: Season 5, Episode 15 - The Friendship Contraction Season 3, Episode 4 - The Pirate Solution Season 2, Episode 17 - The Terminator Decoupling This light blue men's tshirt is 100% cotton (pre-shrunk) and is screen printed in soft feel bright red ink. Sizes: XS, S, M, L, XL, XXL, XXXL Machine wash cold and tumble dry low to give it the extra softness and style you deserve. Our tees have been featured far and wide: CBS, The Last Man on Earth (Fox), The New York Times, The Daily Show, CMT, MTV, NPR and many many other wonderful publications. Our shirts are a favorite of many celebrities and our T-Rex shirt is a staple in Sheldon's closet on the Big Bang Theory (CBS).