Family owned and operated in Vermont since 1990.
Hydro Flask Standard Mouth Flex Cap

Hydro Flask Standard Mouth Flex Cap

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Hydro Flask Standard Mouth Flex Cap - easy sippin'.

Attach the Standard Mouth Flex Cap to your Hydro Flask for easy-to-carry hydration on every hike, stroll, or nature walk! This flexible top features Honeycomb Insulation™, so every sip of water is as crisp as the leaves beneath your feet. Flexible and durable, the Flex Cap makes for a more convenient hydration experience.

Tech Specs

  • Compatible with all Standard Mouth bottles
  • Honeycomb insulation™ helps keep cold drinks cold and hot drinks hot
  • Durable, stainless steel pivots allow the strap to move easily
  • BPA-Free and Phthalate-Free
  • Lifetime Warranty