Hydro Flask

Hydro Flask Standard Mouth Flex Cap

In stock
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Delivery time: 5-7 business days

Sip. Refresh. Go.

Strong, yet flexible, the Standard Mouth Flex Cap is the perfect companion for spontaneous camp outs, epic road trips and everything in between. Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation™ to help keep your kombucha cold for up to 24 hours and morning tea hot for up to 12. Pair it with any Standard Mouth Bottles for a durable way to take your favorite drinks to go.


  • 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
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