Quick Summary
The Hydro Flask Water Bottle is a 621 ml (21 oz) stainless steel bottle in Indigo, with a standard mouth and Flex Straw Cap. It is a vacuum insulated water bottle designed for drinks on the go.
The bottle is described as having double-wall vacuum insulation and a leak-proof Flex Straw Lid. It is a straightforward option if you want a reusable bottle in this size and format.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Hydro Flask. |
| Product type | Water bottle. |
| Capacity | 621 ml (21 oz), which is the main size check before choosing an offer. |
| Material | Stainless steel. |
| Mouth style | Standard mouth. |
| Cap | Flex Straw Cap / Flex Straw Lid. |
| Colour | Indigo. |
What to Compare Before Buying
- Capacity: Check whether 621 ml is the right bottle size for your daily routine, travel bag or desk use.
- Mouth style: This is a standard mouth bottle, so compare that format with the drinking and filling style you prefer.
- Cap type: The Flex Straw Cap is part of the chosen configuration, so make sure that is the style you want.
- Material: Stainless steel suits buyers looking for a reusable bottle in a durable-feeling metal format.
What Is Included
The bottle is supplied with a Flex Straw Cap / Flex Straw Lid.
Before You Decide
Confirm the 621 ml size, standard mouth format and Indigo colour before choosing an offer. If the cap style matters to your use, make sure the Flex Straw Cap is the version you want.






