Personalized Sarcasm Stupidity T-Shirt. Sarcasm falls out of my mouth like stupidity falls out of yours. Some people can't help but be stupid. Others can't help being sarcastic to stupid people. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.