Hydro Flask Wide-Mouth Flex Sip Lid

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Whether you're headed to the office, the farmers market or on a weekend excursion, the Hydro Flask Flex Sip lid provides the convenience you need, thanks to its leakproof design.


  • Leakproof lid allows easy sipping while moving throughout your day
  • Flex Strap makes your bottle (not included) easy to transport and comfortable to carry
  • Smooth-flowing opening is designed for hot liquids, but versatile enough for any drink
  • Easy to disassemble and clean; dishwasher-safe
  • BPA-, phlalate- and toxin-free
  • Covered by a Hydro Flask lifetime warranty


View all Hydro Flask Water Bottle Accessories

Technical Specs

Best Use



2.85 inches


3.2 ounces

937 reviews with an average rating of 3.8 out of 5 stars

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