Quick Summary
The UTOBEST 500ml soft flask is a green, collapsible water bottle for carrying by hand or in a pocket, waist pack or hydration vest. It weighs 41.4 g and has a 42mm-wide opening.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Capacity | 500ml; consider whether this capacity suits the amount of water you want to carry. |
| Weight | 41.4 g, as stated for the 500ml flask. |
| Colour | Green. |
| Material | Food-grade TPU, described as BPA- and PVC-free. |
| Opening | 42mm wide, with ergonomic grooves; the opening is intended to make filling and cleaning easier. |
What to Compare Before Buying
Check that 500ml is the capacity you need and that the flask’s flexible format suits how you plan to carry it. The stated uses include marathons, hiking and cycling. For cleaning access, consider whether the 42mm opening meets your needs.
Compatibility, Size and Fit
The flask is described for hand-held use and carrying in pockets, waist packs and hydration vests. Check the dimensions and fit of your intended carrying space, as no overall flask dimensions are provided.
What Is Included
The flask has a removable bite valve and comes with a removable dust cover. The valve can be removed for thorough cleaning, while the cover is intended to help keep it clean.
Before You Decide
Confirm that the 500ml capacity suits your plans, the flask fits your chosen carrying arrangement and the removable valve and cover meet your preferences for cleaning and use.






