The new and improved Classic™ shaker gives our tried and true bottle an impressive overhaul with performance-focused innovation and modern style. 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. The Classic™ shaker sports an updated lid featuring a more ergonomic carry loop and Spout Guard™ to keep dirty gym fingers off the drinking surface. Forgot to add liquid first No sweat. The rounded base allows the BlenderBall® whisk to mix every last bit of powder. Integrated with the Stay Open™ flip cap, the adjustable carry loop lets you hold more when your hands are full and offers a convenient place to attach keys while at the gym.