Made with an ultra-soft cotton/polyester blend fleece, our "Thin" sweatshirt features a pigment-dyeing process that assures no two are exactly the same. Not too bulky, not too light, the Thin not only keeps you warm, but does it in style, and with the utmost comfort. Ride in it or nap in it; either way you won't be disappointed (just be careful to wash it with like colors; it might bleed those first couple of times through...).