The narrow mouth is the one you drink from while moving. It will not slop down your chin on a washboard road, and it pours into a cup or a pot more precisely than a wide mouth does. The trade is that ice cubes will not fit.

Specifications

• Capacity 16 oz
• Mouth Narrow Mouth
• Cap thread 38 mm
• Diameter 3 in (76 mm)
• Height 7 in (17.75 cm)
• Weight 3.75 oz (106.25 g)
• Tritan Renew copolyester
• Free of BPA, BPS, BPF and phthalates
• Dishwasher safe
• Lifetime guarantee

About Nalgene Sustain and Tritan Renew

Sustain is Nalgene’s name for bottles molded in Tritan Renew, a copolyester that Nalgene describes as made with up to 50% certified recycled content. We quote that “up to” deliberately, because it is Nalgene’s own wording. The resin maker, Eastman, produces it by breaking plastic waste back down into the chemical building blocks of new plastic and accounting for the recycled share across production rather than tracing it to one individual bottle. That is how the certification works, and we would rather say so than imply something it does not cover.

Nalgene states in its FAQ that all of its bottles are free of BPA, BPS, BPF and phthalates.

Care

Dishwasher safe. Nalgene recommends the top rack, away from the heating element; if the bottle is too tall for the top rack, the bottom rack is fine on a high-temperature sanitizing cycle.

Hot liquids: Nalgene rates Tritan Renew for hot liquids including boiling water up to 212°F (100°C) in everyday use. You pour boiling water into the bottle; you never boil water in it, and these bottles are not made for direct heat or open flame. Nalgene asks you to wait a few seconds after pouring before screwing the lid down.

Freezing: allowed, but fill only about two-thirds so the contents can expand.

Which caps fit what — read this before you buy a lid

Nalgene thread sizes do not interchange the way people assume, and Nalgene’s own pages contradict each other on it, so here is the version we are willing to stand behind:

• 63 mm — 32 oz and 48 oz wide mouth, and the wide-mouth-threaded bottles built on them: Grip-n-Gulp, On-The-Fly, All-Terrain.
• 53 mm — the 16 oz wide mouth only. It has its own cap and the 63 mm lid will not fit it. This is the single most common mix-up in the range.
• 38 mm — narrow mouth bottles and the Oasis canteen.

Narrow and wide caps do not interchange in either direction.

Made in the USA.

Lifetime guarantee

Nalgene covers functional damage — cracks, breaks, broken components from normal intended use — under a Lifetime Guarantee. It excludes cosmetic damage such as scratches, nicks and worn printing, excludes lost or stolen items, and excludes Epic filtration products, which Nalgene routes to Epic Water Filters. Nalgene also states that claims are subject to review and may be rejected. Claims go through Nalgene with a photo and proof of purchase; they ask for 14 to 21 days.