Thermos's new hydration bottles give you the flexibility to choose what matters most.Nothing is more vital to staying healthy and fit than proper hydration.Thermos hydration bottles make it easy to stay hydrated throughout the day.They're made of BPA free materials, reusable and built to last.Incorporated into the lid is a rotating intake metre to monitor your daily water consumption.With an ergonomic design that is comfortable to grip and a flip up carrying loop, Thermos's hydration bottle are great for long walks, workouts, the ride to work or wherever life takes you.