Your portable side-kick.
For those who like a wider mouth in a smaller, easy to carry size.
Replacing the existing cap on all Wide Mouth bottles, the new award-winning Flex Cap is the ideal combination of strength and flexibility. Designed for ultimate portability, Hydro Flask crafted every detail with easy-carry comfort in mind – and insulated it too– so you can go further, for longer, keeping your favorite beverage comfortably by your side.
Unique Product Benefits
- Convenient Carry Size
- Ideal for Day Packs
- TempShieldTM Protected
- Keeps cold up to 24 hours
- Keeps hot up to 6 hours
- 18/8 Pro Grade Stainless Steel
- Durable, sweat-free powder coat finish (or our Classic Stainless option)
- Lifetime Warranty
- Industry-standard wide mouth opening fits many third-party water filters
- Compatible with Wide Flat Cap, Hydro Flip Lid and Wide Straw Lid