Personalized All Reps Matter Youth T-Shirt. All Reps Matter! Any weightlifter knows, it's all about repetition. Each one counts, but the next one counts more. Great gift for anybody who loves the gym. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.