The Flip Cap provides a narrow-mouth spout for on-the-go drinking. The medical-grade silicone flip top seals with the polypropylene (PP#5) cap. The pivoting handle provides a great way to carry the bottle and stows out of the way while drinking. Wide-mouth access makes it easy to add ice cubes or fresh fruit. Always BPA-free and dishwasher safe, all components are made in the U.S. or Europe.