Hydro Flask Wide Mouth Flex Cap

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Hydro Flask Standard Mouth Flex Cap is the perfect companion for everything from campouts to road trips.

Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation™ to help keep your drinks cold for up to 24 hours or hot up to 12. Fits on any Hydro Flask Wide Mouth bottles.

  • Compatible with all Wide 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