DOUBLE YOUR GAINS Workout T-Shirt, Gym Shirts, Lifting T-Shirt, Gym Gear, Gym Apparel, Workout Gift, Gift for Weightlifters, Gift for him This Double Your Gains workout t-shirt for men is made of 60% cotton and 40% poly fabric for a very soft and lightweight feel. Providing a comfortable and regular fit. Its manly fashion cut with side seams adds to its stylish look. This shirt makes a great gift for any man who loves working out.