Store › Dark Matter Research X Champion Sweatshirt Image 1 of 1 Dark Matter Research X Champion Sweatshirt from $55.00 Our Dark Matter Research X Champion Sweatshirt. Embroidered crow logo on the front. Material: 82% cotton, 18% polyester Color: Black Size: Select Size S M L XL 2XL Quantity: Add To Cart Added! Our Dark Matter Research X Champion Sweatshirt. Embroidered crow logo on the front. Material: 82% cotton, 18% polyester Color: Black