The original. The trailblazer. The Sir Edmund of water bottles. If you’re looking for a water bottle that will keep you well hydrated， hold up against bangs， bumps and drops， and not leak a single drop ever， then the iconic 32-ounce Nalgene narrow mouth is your water bottle. There’s a reason why we haven’t changed its design in decades—because it works (extremely well). Manufactured in Rochester NY since 1949， all Nalgene bottles are now made with a revolutionary resin powered by new recycling technology that allows us to transform plastic destined for landfills into high-performance BPA/BPS and phthalate free water bottles. Same iconic Nalgene bottle， delivering the same high-quality features as the original Nalgene bottle， now just made with Tritan Renew using 50% certified recycled content. This material is derived from 50% waste plastic using ISCC certified mass balance; and the equivalent of 8 single-use plastic bottles are recycled to produce one 32oz Nalgene Sustain bottle. Nalgene water bottles are perfect for everyday use， outdoor sports like hiking， camping， climbing and more. See-through construction is convenient and measurements on the side make it easy to track your water intake. The narrow opening allows for a controlled flow and the design is extremely durable and versatile. Made in USA， all bottles come with a lifetime guarantee.