Soft and heather black, the sweet Venom Symbol Heather Charcoal Tank Top is made from 50% polyester, 38% cotton, and 12% rayon. What’s that mean? It means you don’t have to worry about this thing trying to fuse with you forever.That probably still means you should take it off every once and awhile if only to wash it. Still, the symbol on this fine tank-top should let Spider-Man and his ilk know not to take you lightly!