Marvel Guardians of the Galaxy Vol. 2 Cassette T-Shirt Whoever said there is no sound in space, must not have seen the Marvel Guardians of the Galaxy Vol. 2 Cassette Heather Gray T-Shirt! Quill's beloved "Awesome Mix" cassette tape is printed proudly across this fun gray Guardians of the Galaxy Vol. 2 shirt. You know Star-Lord is singing and dancing along wherever he is in the galaxy! 60% Cotton, 40% Polyester.