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1 retailer
Mountain Stow™ 350ml
The HydraPak Mountain Stow™ 350ml is a 350 mL (12 fl oz) collapsible tpu water bottle that weighs 35 g.
- Capacity
- 350 mL (12 fl oz)
- Weight
- 0.1 lb · 35 g
- Material
- TPU (soft film)
- Diameter
- Not published
Image not availableWhat the data says
- Lighter than 100% of the 21 other bottles we list in the 200–500 mL range.
- Weighs 100 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.
- Lowest in-stock price is 20% below list price this week.
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 | 350 mL (12 fl oz) |
|---|---|
| Weight (manufacturer, empty) | 0.08 lb (35 g) |
| Height | 165 mm (6.5 in) |
| Collapsible | Yes |
| Material | TPU (soft film) |
|---|---|
| BPA-free | Yes |
| Colorways | Sutro, Redwood, Mammoth, Tahoe |
| 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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