Show your affection for Zim's trusted companion by sporting this cute Gir Genius Duh t-shirt. Features nerdy Gir on the front and reads, Genius?.....Duh! If you're a die hard Gir fan this shirt is perfect for you! This black, form fit junior ladies shirt is made from 100% cotton. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Invader Zim Gir Face tshirt style.