Mordor Fun Run Tank Tops GootenThis relaxed fit tank is designed with ultra soft triblend and a flattering racerback with raw edge seams. It's made from 50% poly, 25% Airlume combed and ring spun cotton and 25% rayon, 40 single 3. 8 oz, while the materials used for Black Heather are 70% Airlume combed and ring spun cotton, 15% polyester and 15% rayon. Care Instructions: Machine wash and tumble dry on low.