This Back To The Future shirt features an image of Dr. Emmett Brown's DeLorean DMC-12 and reads 1.21 Gigawatts. Doc Brown famously pronounced it one point twenty-one Jigowatts, but 1.21 Gigawatts is the amount of power needed to make the Flux Capacitor work, which in turn makes time travel possible. This 1.21 Gigawatts t-shirt is perfect for any fan of the 1985 classic Back To The Future. This red heather, standard fit shirt is made of 60% cotton / 40% polyester. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Back To The Future 1.21 Gigawatts t-shirt style. Check back often for some of our new Back to the Future clothing and other Back to the Future merchandise at great prices only at AnimationShops.com.