Stow
A collapsible and lightweight water bottle made from multiple plastics, designed for portability and minimal weight.
How scores are calculated
Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.
Packaging (20%): Is the product packaged in plastic? Is it recyclable?
Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?
Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.
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Last updated: April 8, 2026
Entirely made of various plastics, lacks versatility, doesn't stand up on its own, and leaks when squeezed. Very low score for material and functionality.
Why We Recommend This Product
Hydrapak's Stow is made from Thermoplastic polyurethane, polypropylene, silicone.
Chemical & Health Analysis
Each chemical of concern is broken down below — what it is, where it comes from in this product, what it does to the body, and who is most at risk.
Various plastic chemicals
Hydrapak Stow
Heavy plastic content, potential for chemical leaching, leaks when squeezed.
All health claims are based on published, peer-reviewed research from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.
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