HydraPak Stow Flexible Bottle 1L (Sutro Green) – a collapsible bottle that disappears in your backpack

HydraPak Stow Flexible Bottle 1L (Sutro Green) is an ultra-light, highly functional, and flexible collapsible bottle designed for hiking, long-distance running, bushcraft, and survival enthusiasts. Engineered by the acclaimed American brand HydraPak, this innovative softflask offers an uncompromising alternative to traditional rigid bottles. It provides a revolutionary approach to packing and transporting fluids in the field, optimally adapting to the storage space of any backpack, running vest, or tactical fanny pack.

The bottle's construction is based on the use of advanced thermoplastic polyurethane (TPU), combined with polypropylene (PP) and silicone components. The bottle walls are joined using High Frequency Welding (RF welded seams) technology, which guarantees superior flexibility, leak-proofing, and resistance to cracks, tears, or abrasions. The material exhibits excellent thermal properties – the bottle can be safely frozen or filled with hot liquids up to 60°C. Most importantly for your health, the product is 100% safe and completely free of carcinogenic and harmful chemicals such as BPA and PVC, while maintaining the neutral taste of the water carried.

A key advantage of the HydraPak Stow Flexible Bottle 1L (Sutro Green) is its unique design that allows for maximum compression. Once empty, the bottle can be flattened, rolled up, and secured using the integrated handle, ensuring it takes up minimal space in your gear. The flexible bail handle serves a triple function: it acts as a convenient carrying handle, allows for stable filling in rivers or lakes, and enables easy attachment of the bottle to the outside of a backpack using a carabiner. Tightness and hygiene are ensured by a silicone, self-sealing nozzle with an ergonomic flip-top cover that protects against dust, mud, and dirt. Additionally, the bottle features an external scale (capacity indicator), making it easy to track daily hydration levels or measure water for freeze-dried meals.

For backcountry expedition enthusiasts, the versatility of the cap will be an invaluable asset. The bottle features a standard 28 mm diameter thread, which is fully compatible with popular portable water filters, such as the Sawyer Mini or LifeStraw Flex. This allows for the instant transformation of the flexible reservoir into an efficient, durable bag for gravity or squeeze filtration, providing safe drinking water straight from wild, uncertain surface sources. The entire unit is finished in an attractive, natural Sutro Green shade.

Key Features:

1. Manufacturer: An original, innovative product from the renowned American brand HydraPak.
2. Full name and color: HydraPak Stow Flexible Bottle 1L (Sutro Green) – a stylish, matte shade of natural green.
3. Product code: The official manufacturer catalog designation is GS330S.
4. Product capacity: Large capacity of exactly 1 liter (1 L / 32 fl oz).
5. Product weight: Exceptionally low empty weight of just 57 g, up to 50% lighter than standard rigid bottles.
6. Bottle dimensions: Compact dimensions when unfolded of 230 x 130 mm (23 x 13 cm).
7. Cap thread: Universal thread diameter of 28 mm.
8. Construction materials: High-quality thermoplastic polyurethane (TPU), polypropylene (PP), and durable silicone.
9. Health safety: Fully hygienic product, completely free of harmful BPA, PVC, and phthalates.
10. Manufacturing technology: Extremely durable walls welded using the High Frequency (RF) method.
11. Compression capability: Can be completely flattened, rolled, and locked using the carrying loop (Roll to Pack).
12. Nozzle design: Leak-proof silicone nozzle with a movable flip-top cover to protect against external contaminants.
13. Multifunctional handle: Flexible bail handle for easy carrying, filling, and quick attachment to equipment.
14. Filtration compatibility: Direct attachment capability for popular field filters (e.g., Sawyer Mini or LifeStraw Flex).
15. Thermal resistance: Construction suitable for freezing and filling with liquids up to 60°C.
16. Hydration scale: External capacity scale to facilitate precise monitoring of remaining liquid volume.
17. Maintenance ease: Smooth interior walls suitable for effortless cleaning and dishwasher safe.