Blue 1.21 Gigawatts T-Shirt

You don't have to be a resident of Hill Valley to show that you can feel the power of 1.21 Gigawatts. All you need is this Back To The Future t-shirt. The shirt features an image of Dr. Emmett Brown's DeLorean DMC-12 time machine, and the shirt reads 1.21 Gigawatts. According to Doc Brown, the Flux Capacitor is what makes time travel possible, and it requires 1.21 Gigawatts of power. For any fan of the 1985 classic Back To The Future, this 1.21 Gigawatts t-shirt is a must have.