The Platypus 2L Bottle (Platy Bottle) is a lightweight, collapsible water bottle I often carry on backpacking trips. When empty, it packs down very small, making it easy to stow in tight spaces or alongside other gear. The bottle is made from nylon/polyethylene film that is BPA-, BPS-, and phthalate-free, and it does not affect the taste of water. Its threaded cap is compatible with a range of Platypus accessories, including gravity filters and drink tubes, which adds versatility for different hydration setups.
In practice, the bottle is fairly stable when filled and stands well enough to pour or attach a filter. Measurement markings help track water volumes for cooking or rationing. It can also be partially filled with air removed to reduce bulk, making it convenient for storage. At camp, it serves as a simple water reservoir: my hiking partner and I can fill it each evening and have enough water for dinner and breakfast the next morning, avoiding extra trips to the water source. I have found it works best to use another bottle to fill it if the water source is a shallow pool rather than a flowing creek.
Some limitations include the relatively narrow spout, which can make filling from shallow streams awkward. Cleaning can be slightly more difficult than with wide-mouth bottles, and the plastic can wear over time from repeated folding or creasing. Storing the bottle uncompressed when not in use helps extend its life. Overfilling or dropping the bottle while full can also create pressure-related leaks or spills, so care is advised.
Overall, the Platypus 2L Bottle is a lightweight, flexible way to add water-carrying capacity to a backpacking setup. It is especially useful for hikers who want a packable container that can double as a filter reservoir or simple water storage at camp.
Best for: Backpackers and thru-hikers who need a lightweight, packable water container that can serve as a filter reservoir or hydration system component.
Not best for: Hikers who prefer wide-mouth bottles for easier cleaning or those who frequently fill from shallow or messy water sources.
Disclosures
Obtained independently: I paid for this product or received it as a personal gift from someone not affiliated with the brand.
Backpacking Light affiliation: I work for Backpacking Light in a paid or official capacity (owner/shareholder, employee, contractor, or paid contributor), but I am posting this review as an independent user and its content was not reviewed or directed by others at Backpacking Light.