A cocktail shaker that fixes all the problems associated with cocktail shakers. It starts with the shape: a slight hourglass to help you grip it tight. Then there's the top. It's got a built-in strainer, measurements from a quarter ounce to six ounces, and a durable silicone gasket that stops leaks and makes light work of separating the two pieces—no more smashing the shaker with the palm of your hand. Speaking of hands, double-wall vacuum-sealed construction keeps them from freezing when you're shaking up a few drinks in a row. It also prevents ice from warming up too fast and over-diluting your mix. This is one smart shaker.