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1 retailer
Protect Our Winters Stow™ 500ml
The HydraPak Protect Our Winters Stow™ 500ml is a 500 mL (17 fl oz) collapsible tpu water bottle that weighs 45 g.
- Capacity
- 500 mL (17 fl oz)
- Weight
- 0.1 lb · 45 g
- Material
- TPU (soft film)
- Diameter
- Not published
Image not availableWhat the data says
- Lighter than 95% of the 37 other bottles we list in the 350–650 mL range.
- Weighs 90 g per liter it holds: ultralight by our measure (100 g or less per liter).
- Its 28 mm thread is the common soda-bottle size that squeeze filters screw onto.
Computed from the specs below. How we write summaries.
Full specs
Last verified Oct 17, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (hydrapak.com).
| Capacity | 500 mL (17 fl oz) |
|---|---|
| Weight (manufacturer, empty) | 0.10 lb (45 g) |
| Collapsible | Yes |
| Material | TPU (soft film) |
|---|---|
| BPA-free | Yes |
| Colorways | POW Glacier Blue, POW Mammoth |
| Warranty | Beyond™ Lifetime Guarantee |
| Lid | Flip-top lid |
|---|---|
| Opening | 28 mm (1.1 in) |
| Leakproof | Yes |
| Carry loop | Yes |
| Fits squeeze filters | Yes |
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