Kill Your Workout Workout T-Shirt, Gym Shirts, Lifting T-Shirt, Gym Gear, Gym Apparel, Workout Gift, Gift for Weightlifters . Gift for him Introducing our Kill Your Workout Funny Gym T-Shirt for Men. Made with very soft and lightweight 60% cotton and 40% poly blend. This shirt offers a comfortable, regular fit. Perfect for gym lovers, this manly fashion cut with side seams adds to its stylish look also makes for a great gift idea. Take your workout gear to the next level with this funny and comfortable gym t-shirt.