The shirt is powered by two AAA batteries (ha! How many times do you get to read a sentence that geeky?), and is 100 percent cotton and completely machine-washable. What do you think?
Oct 28 2009 Rocking a geeky watch is one thing, but this Time T-Shirt ($37) with a fully-functional digital clock ups the ante. The shirt uses electro-luminescence technology — a very weak electric current that passes through the shirt, causing the material to generate light and display the time. Don't worry, it doesn't radiate heat or use hazardous materials.