Ready to shake it up and serve from wherever, whenever the YETI Rambler 20oz Cocktail Shaker is the ultimate on-the-go mixer. The durable, puncture resistant stainless steel and interior double-wall insulation will keep your mixed drinks perfectly chilled and protected from the elements. After combining your ice and drink ingredients, the lid easily presses in and cap twists on. Every drop stays in thanks to the leak resistant seal. When happy hour is over, put this in the dishwasher for easy clean up.