Nuby Plastic No-Spill Sport Sipper, 10 Ounce Colors May Vary

No matter what recreational activity your child is engaged in, the No-Spill Sport Sipper by Nuby is perfect for parents and children on the go! Why? Because Nuby developed the Sport Sipper with an innovative, ergonomic shape with easy grips that ensures a comfortable and secure grasp for you child. Also included is the unique soft silicone straw with a built-in valve; it opens with sucking action and closes when not in use. Plus, it€s BPA Free.