SECURITY T-Shirt - Print on BOTH Sides (in 32 colors) 100% Cotton We ONLY use top Quality, Name Brand heavy cotton t-shirts that last wash after wash. T-Shirt Brands used for this design: Anvil, Gildan, Hanes, Jerzees or Fruit of the Loom Ash is 99% cotton, 1% other fibers; Heather Grey is 90% cotton, 10% polyester. 5.6 & 6 oz., heavyweight 100% preshrunk cotton T-shirt. This is not a transfer. Very vibrant color print. Won't peel or crack in washer or dryer.