Save the strength work for the gym. The BlenderBottle® Strada™ protein shaker opens effortlessly with just the push of a button. Snap shut the secure-lock lid for a quick, leak-proof seal. Say goodbye to lumpy protein shakes. Our powerful mixing system uses the BlenderBall® wire whisk—found only in BlenderBottle® brand shakers—to deliver smooth protein and nutrition shakes with ease. Forgot to add liquid first? No sweat. The rounded base allows the BlenderBall® whisk to mix every last bit of powder. A flexible, ergonomic carry loop provides a comfortable hold for easy portability. Or use the loop to secure keys or attach the bottle to a gym bag. Enjoy today's smoothie without tasting last week's protein shake. This stainless steel shaker will keep your protein cold for hours.