BlenderBottle's 2-in-1 Shaker Tumbler is the first stainless steel tumbler of its kind to include both a swig and sip design. Combining it with the (NEW) BlenderBall Color; the 24 oz tumbler is made for every activity. This drink shaker tumbler's contents are fully contained (when the straw is removed) by a tightly threaded screw-on lid that creates a leakproof seal. The sleek and cute design is made to fit most cupholders. Express yourself with BlenderBall Color which offers multiple color designs and still get the same powerful mixing technology as the wire whisk. Whether you are in the gym or traveling, this all in one tumbler with lid and straw can keep up with you. BlenderBottle's insulated tumblers is made from high-grade stainless steel that guards against lingering flavors. Keeps today’s smoothie from tasting like last week’s protein shake. With so many ways to use the BlenderBottle Shaker Tumbler, keep your mixed greens, hydration powders, collagen, or pre-workout on hand to mix on the go when you ne