The Pro version of the original BlenderBottle protein shaker incorporates pro-grade features and top-of-the-line materials for a superior mixing experience. Elements from the first classic bottle including the BlenderBall whisk, leak-proof seal, and the carry loop are paired with the improved pro design, a rounded base for smoother mixing, stain and odor resistant durable Eastman Tritan™, and pro-level SpoutGuard for a germ-free drinking experience. The Pro is the ideal workout partner, from fitness beginners to fitness enthusiasts.