$3.00 from each Kitty Power shirt will go to various local shelters/rescues. We love all animals and Pitbulls hold a special place in our hearts but we couldn't deny our crazy cat lovers any longer. Cats and barbells? it's a no brainer! ​ Available sizes Small, Medium, Large, XL ​ Lightweight and soft, the shirt feels like one you've had your whole life. Muscle tee is 3.7 oz. 65% Polyester, 35% Viscose. Crop top is 65% Polyester 35% Combed Ring-Spun Cotton.