Personalized Hilarious Fitness Humor Sarcastic Gym Joke T-Shirt. This funny I'm fat but identify as skinny I'm trans slender shirt is a great gag gift for men and women who love humor, sarcasm, and clever sayings. Perfect for gym lovers, fitness friends, or anyone who enjoys funny joke tees. 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.