Show your retro style colours with this super cool light-up Space Invaders T-Shirt! Our Space Invaders T-Shirt has a thin electro luminescence panel that is super-bright & lightweight. A tiny battery pack is cleverly hidden in the lining of the shirt with discrete wiring for comfort & wearability. With its retro styling & clever EL technology, this Space Invaders t-shirt is fantastic for clubbing & makes a great geek gift. Officially licensed Space Invaders t-shirt The t-shirt is hand wash only 100% cotton The battery pack can be unplugged for easy washing. Requires 4 regular AAA Batteries (not included) Size Guide Small 36-38" Medium 39-41" Large 42-44"X Large 45-47"