Nalgene HDPE Wide Mouth 32 oz BPA-Free Water Bottle

For backpackers willing to trade a touch of stain-resistance for meaningful weight savings, the Nalgene HDPE Wide Mouth gets specific endorsement from sectionhiker.com, which notes the HDPE construction is roughly 40% lighter than the standard Tritan version. trailgroove.com makes the same point about HDPE being lighter than its Tritan cousin while remaining BPA-free. cleverhiker.com and outdoorgearlab.com both apply their broader Nalgene Wide Mouth praise to this variant: sturdy, functional, cheap, and easy to clean.

Community threads are largely positive — r/BuyItForLife users describe the wide-mouth HDPE as essentially indestructible and dishwasher-friendly — but r/Ultralight provides the honest counterpoint: even this bottle is heavier than a disposable Smartwater bottle, which gram-counting thru-hikers prefer. r/camping repeats the recurring complaint that the wide mouth spills while drinking on the move.

Net read across the reviewers: this is the pick if you want a true backpacking Nalgene rather than the everyday Tritan version. It's slightly less stain-resistant and slightly less heat-tolerant than Tritan, per r/Nalgene discussion, but the weight delta matters on multi-day trips.