Not only is this glitzy t-shirt adorable, but it is environmentally friendly. The Mountain shirts are top quality, pre-washed, pre-shrunk 100 percent cotton shirts, which are carefully hand dyed in amazing colors with earth friendly dyes. Guaranteed to have exceptional color and years of wear. Mountain shirts have amazing images with the most incredible artistic detail. The The Mountain uses only water-based inks, which are environmentally friendly and they go out of their way to insure that the manufacturing process fully protects our air and water.