The Nalgene Sustain 16 oz. Tritan Wide Mouth Water Bottle will keep you hydrated and holds up against bangs, bumps and drops. This bottle is made with durable material that is built to last and features a leak-proof cap for peace of mind. The wide mouth opening makes it easy to fill up with ice cubes. This bottle is perfect for your busy, on-the-go lifestyle. BPA/BPS Free. Dishwasher Safe. Marked measurements to keep track of your intake.