iWOTER Sports Bottles -Outdoor Tritan Bpa-Free Water Bottle for Office, Gym(1000 ml) Tritan BPA-Free Water Bottle Marked with milliliters and ounces for easy measurement Flip-Top Cap, and Wide Opening For Quick and Easy Cleaning Mouthpiece is covered by an attached snap over lid which keeps it clean and leak-proof Made from Tritan copolyester so it's super tough and nice looking