An odor-resistant Eastman Tritan™ plastic, a rounded base, and the new Spout Guard for keeping dirty gym fingers at bayNEW PRO SERIES LIDThe Pro Series sports our updated lid styling, featuring a wider carry loop, SpoutGuard™ protection, and a more ergonomic flip cap.STAIN AND ODOR RESISTANTEnjoy today’s smoothie without tasting last week’s protein shake. The Pro Series is built using durable, EastmanTritan™plastic to guard against lingering flavors.LEAK PROOF GUARANTEEWhether you’re mixing a shake or just drinking water, you can rest assured that you’ve got a secure seal.HIGH-GRADE MATERIALSLike all BlenderBottle® brand shaker cups, the Pro Series is proudly made using high quality, BPA- and Phthalate-free materials.