WE'RE NOT WORTHY! Muhammad Ali heavyweight boxing champion...The Greatest apparel for stylin fans YEP, IT'S OFFICIAL! Our cool graphic t shirts are 100% authentic and officially licensed. These super comfy tees are designed and printed in the USA by American Classics, a leader in high-quality retro, vintage style apparel since 1994 HIGH QUALITY COMFY & COOL: poly/cotton blend short sleeve, crew neck t shirts for men, women, unisex. Pairs well with button up shirts, jeans, shorts, and with leggings for women. EASY CARE machine wash, tumble dry THIS GIFT'S FOR YOU...OR THEM: Everyone loves cool graphic tees! Treat your friends, family or yourself (wink wink) to a comfortable, unique shirt that's perfect for all occasions. Let us be your gift hero...you're welcome FUN FAN FACT: Did you know Muhammad Ali once starred in a Broadway musical? Float like a butterfly, sting like a bee...sting like Ali Printed in the USA, using high quality 100% cotton. This graphic print design is printed only on the front of the shirt. There is no design on the back of the t-shirt. Image is for clarity. Due to different computer monitors, colors may vary from the picture.