Hydro Flask 21oz Standard Mouth w/ Flex Cap

Color: White-110
Sale price$34.95



  • Proprietary powder coat for easy-grip, sweat-free, and extra-durability
  • TempShield™ protected sweat-free finish eliminates condensation, keeping hot beverages hot up to 6 hours and cold drinks cold and refreshing for 24 hours
  • Made from extra durable 18/8 pro-grade stainless steel that ensures pure taste and no flavor transfer


  • Hydration bottle for the trails and everyday use
  • Standard mouth opening for easy, on-the-go drinking
  • BPA free and phthalate-free
  • Includes a lid for easy transport
  • Also compatible with Hydro Flask® Wide Flat Cap, Hydro Flip Lid and Wide Straw Lid


  • Capacity: 21 oz.
  • Mouth Diameter: 1.91 in.
  • Bottle Dimensions: 2.81 in. W x 9.4 in. H
  • Style: S21SX

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