Nalgene Sustain 32 oz. Wide Mouth Water Bottle

Why it's worth it

The Nalgene Sustain is a wide-mouth Tritan bottle that weighs almost nothing, survives being dropped down a scree slope, and costs a fraction of the steel bottles here. It's made with 50% certified recycled content and is free of BPA, BPS and phthalates.

Buy this if weight and durability matter more than cold water. An empty Nalgene barely registers in a pack — it's a fraction of the weight of any insulated steel bottle, which is why it's been strapped to backpacks for decades. It handles anything from ice water to hot tea, rated from -40°F to 212°F, and it doesn't dent. It scratches and it fogs, and then it keeps working.

The sustainability story is real rather than marketing. Nalgene builds the Sustain line from Eastman's Tritan Renew, which contains 50% certified recycled content, and third-party lab testing verifies it as free of BPA, BPS, BPF and phthalates. If you're replacing single-use bottles, that's the point: Earth Day Network estimates one reusable bottle keeps about 156 disposables out of circulation per person, per year.

From our review of 8 reusable water bottles and coffee cups, by Chloe Miller, Lifestyle & Trends Editor

What we like

• +Buy this if weight and durability matter more than cold water
• +The sustainability story is real rather than marketing
• +Cleaning is trivial. The mouth is wide enough to get your whole hand in, there's no straw and no complicated gasket stack, and…

What to know

• –There's no insulation at all
• –It's also bulky for its capacity — a 32-ounce Nalgene is a wide cylinder that won't go near a cup holder — and Tritan can pick…