Personalized I Do Stupid Things T-Shirt. Don't follow me. I do stupid things. Retro vintage rainbow and bicycle, but you don't have to be a cyclist to be stupid. 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.