All the effectiveness of the wide mouth bottle with a narrower opening for controlled hydration. The specially designed lip is ideal for keeping the flow, without the stress of a mess. Tough and guaranteed for life, the narrow mouth is ready for whatever’s in store. All Nalgene bottles are now made with a revolutionary resin powered by new recycling technology that transforms plastic destined for landfills into high-performance BPA/BPS-free bottles. This material is derived from 50% waste plastic (using ISCC certified mass balance), further offsetting the use of fossil fuels and lowering greenhouse gas emissions. Features BPA/BPS Free: So you can drink water that's safe and tastes great. Built to Last: Durable goods are made to last a lifetime. Dishwasher Safe: Safe to put in the dishwasher and easy to clean. Fits Filtration Devices: Fits most filtration units for clean water in a pinch. Fits Ice Cubes: Put ice in your bottle with ease and enjoy your frosty beverage anywhere. Leak-Proof Guarantee: Continuous, straight shouldered semi-buttress threads keep the bottle sealed tight. Lightweight: Engineered to count for when weight matters most. Made In the USA: Local goods mean local jobs and fewer emissions. Recycled Material: Made from recycled materials so you can look good and feel good. Specifications Bottle Volume: 1L Lid Type: Narrow Mouth Material: Tritan Diameter: 3.5 inches (89mm) Cap Diameter: 1.5 inches (38mm) Weight: 5.875 oz (166.5g) Height: 9.25 in (23.5cm) Country of Origin: USA