POLICE on Infant & Toddler Cotton T-Shirt (in 21 colors) This shirt runs small. Order next size up. See size details under Product Description below. We ONLY use top Quality, Name Brand cotton t-shirts that last wash after wash. 5.5 oz. 100% cotton jersey T-shirt, Heather Gray is 90% cotton, 10% polyester. Infant & Toddler Sizes Very vibrant color print. Won't peel or crack in washer or dryer.