Printed on a Heather Gray Polyester shirt. A classic design reimagined! At Shockwave Wrestling we want to provide you rad merch no matter what you’re doing, even working out! We designed these shirts on 100% Polyester shirts for maximum moisture wicking, comfort and breathability. These shirts are dyed instead of screen printed meaning the design won’t stick to your back no matter what the situation! Grab yourself one today and look stylish, even in the gym!