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HydroFlask 21oz Standard Mouth with Flex Cap
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  • This item ships directly from the manufacturer.
  • Please allow at least 48 business hours for the order to ship.
  • There may be unforeseen delays once the order is submitted to the manufacturer.

HydroFlask 21oz Standard Mouth with Flex Cap

Multiple Colors Available!



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HydroFlask's Tempshield Technology eliminates the need for a heavy bottom cap to seal the flask. Their proprietary bottom seal creates a secure vacuum, meaning they can make the lightest weight bottles in the insulated hydration category. Using their own dedicated ovens, they are able to insure stringent control over the entire production process.
  • Height: 9.4 in; Weight: 12 oz
  • Diameter: Mouth 1.91 in; Bottle 2.87 in