Get a great fit without sacrificing style with this Boston Bruins Clash Nightfall Blackout Patch Structured Mesh Flex Hat from Levelwear. This flex hat is made form a nylon and spandex blend to provide optimal durability and comfort. With sleek, monochromatic Boston Bruins graphics and a subtle sublimated pattern for a modern look, this hat is sure to become a staple in your wardrobe.