Steel half Growler. The 32oz adventure steel grumbler's steel-lined lid and single-wall, Stainless Steel construction offers a level of protection from the elements and light that no standard glass grumbler could ever achieve. A rugged handle for easy carrying and one-handed pouring coupled with a wide mouth for quick filling, sharing, and cleaning makes for seamless movement from cooler to tailgate. Consider it a game changer on your next game day.