That's not Santa you hear in the sky, it's a TIE fighter carrying the Star Wars Christmas Empire Lack of Cheer Heather Green Racerback Tank Top! Darth Vader's helmet sits next to two stormtrooper helmets with Santa hats and the phrase "I Find Your Lack of Cheer Disturbing" printed on the front of this funny green Star Wars Christmas shirt. 50% Polyester, 25% Cotton, 25% Rayon.