The Hydro Flask Wide Mouth Flex Straw Cap is the brand's most-versatile accessory cap — the modular lid that turns any Wide Mouth Hydro Flask bottle into a leakproof, insulated straw-cap configuration.
Hydration on the go just got easier with our leakproof, insulated Flex Straw Cap. Add it to your favorite Wide Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.
Product Benefits
- Wide Mouth Flex Straw Cap fits all Hydro Flask Wide Mouth Bottles
- Straw is easy to trim to fit your favorite Hydro Flask
- Flex Strap is easy to transport and comfortable to carry
- Honeycomb™ Insulated cap for maximum temperature retention
- Leakproof when closed so you can reliably sip and transport your refreshment without worry
- BPA-Free & Toxin-Free
- Removable components for easy cleaning.
- Lifetime Warranty
Care & Use
- Dishwasher safe, or use our Straw & Lid Cleaning Set
- Not intended for use with carbonated beverages.
- Flex Straw Cap not intended for use with hot liquids.
- Keep hot liquids out of the reach of children.
For customers who already own Hydro Flask Wide Mouth bottles and want hands-busy drinking without buying a new bottle. The Flex Straw Cap snaps onto any Wide Mouth bottle in the Hydro Flask line, meaning you can convert a workout bottle into a desk-work bottle without changing the actual bottle. Right pick for customers building a flexible hydration kit around lid-swap modularity. Useful as a replacement for lost or damaged straw caps, or as an addition to an existing Wide Mouth bottle for occasional straw use across daily contexts. Modular lid systems are increasingly important in hydration product design because they let customers extend the useful life of bottles they already own rather than buying new bottles for each use case. Hydro Flask's lid-swap approach has set the standard for this category. A useful modular accessory piece.
