Wide Mouth Water Bottle 32 oz
32 oz wide mouth stainless steel water bottle with TempShield double-wall vacuum insulation. 18/8 stainless steel. No BPA, no BPS, no phthalates.
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.
This is a rating of this specific product only — not the company. Other products from this brand may score differently.
Last updated: April 6, 2026
Tap water in the US contains detectable PFAS in over 45% of systems tested by the USGS. Plastic water bottles leach BPA, BPS, and microplastics — especially when heated. The average American gets a significant portion of their total plastic exposure from drinking water and beverage containers.
Why We Rated It This Way
Hydro Flask's 18/8 stainless steel construction is food-safe and durable. The double-wall insulation keeps drinks cold for 24 hours and hot for 12 hours. No plastic in the water contact area makes this one of the cleanest hydration options available.
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