The 12-ounce size is perfect for sparkling water, soft drinks, and good old-fashioned beer, all kept straight-from-the-cooler cold while kicking back on the boat, at camp, or wherever good times are going down. If you know the original, this one's just like it, but with a sleeker design and an updated gasket. Made with kitchen-grade stainless steel, so they're puncture and rust resistant.