Image not available$13.99
1 retailer
28mm HydriamX Collapsible Flask
The CNOC Outdoors 28mm HydriamX Collapsible Flask is a 350 mL–750 mL (12–25 fl oz) collapsible tpu water bottle that weighs 24 g.
- Capacity
- 350 mL–750 mL (12–25 fl oz)
- Weight
- 0.1 lb · 24 g
- Material
- TPU (soft film)
- Diameter
- Not published
Image not availableWhat the data says
- Lighter than 100% of the 17 other bottles we list in the 600–900 mL range.
- Its 28 mm thread is the common soda-bottle size that squeeze filters screw onto.
- Lowest in-stock price is 12% 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 (minimalgear.com).
| Capacity | 350 mL–750 mL (12–25 fl oz) |
|---|---|
| Weight (manufacturer, empty) | 0.05 lb (24 g) |
| Collapsible | Yes |
| Material | TPU (soft film) |
|---|---|
| BPA-free | Yes |
| Colorways | 350ml Green, 500ml Green, 750ml Green, 350ml Purple, 500ml Purple, 750ml Purple |
| Lid | Screw cap |
|---|---|
| Opening | 28 mm (1.1 in) |
| Fits squeeze filters | Yes |
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