The 3D Skeleton Chest Glow in The Dark Adult T-Shirt is a fun accessory for your skeleton costume that you're piecing together, but it also makes a fun t-shirt to wear. The bones glow in the dark for a cool effect that is sure to freak people out. The shirt is made of 100% preshrunk cotton--that's right, it's already been shrunk so you won't have to worry about it shrinking in the wash. It's very comfortable to wear. Don't be a bonehead, and make sure to pick up your glow-in-the-dark shirt before they are all gone.