Superman acknowledges your sensitivity to lower temperatures.Which is why he granted us some liberties with his license, like printing the Superman symbol on a comfortable long sleeve shirt.This 100% cotton Superman long sleeve shirt is just like the traditional royal blue symbol short sleeve shirt, but different; it has longer — specifically, "long" — sleeves. And that especially bright Superman symbol layering a royal blue shirt? It’s “especially” so because of the screen-printed application. Basically, it will endure atmospheric reentry without acquiring the slightest molecular blemish.