Mason jars are classic low-key outdoor glassware. They also provided the inspiration for this highball cocktail shaker. It has a coupling strainer that lets it serve as both a shaker and a glass, with a leak-proof stainless steel plug cap with a silicone seal to keep contents inside while on the move. It's made from thick 18/8 kitchen-grade stainless steel, with a tricot nylon inner sleeve and a vacuum-insulated build. In addition to transporting cocktails, it can also double as a koozie, securing either a 16 or 12 oz. can inside, with or without the strainer, respectively. Also great for hot beverages.