Hydro Flask Standard Mouth 21Oz W/Flex Cap

One Size
Delivery - FREE over £70
Ordered before 8:00PM, DELIVERED TOMORROW

All about this product



The Hydro Flask Standard Mouth 21oz Bottle with Flex Cap is one of the most versatile water bottles available. With a convenient capacity and a generous opening, it is great for sports drinks or thicker liquids, and can happily accomodate ice cubes. Whether it's for a hot cup of tea on a mountain side or a refreshing gulp of water mid work-out, this flask will have your hydration needs covered.

Technical details

  • Ideal use: Travel, camping, outdoor expeditions
  • Capacity: 21oz (621ml)
  • Materials:
    • 18/8 Pro Grade Stainless Steel
    • Durable, sweat-free powder coated finish
    • BPA Phthalate free
    • TempShield double wall vacuum insulation:
      • Keeps Hot up to 12 Hours
      • Keeps Cold up to 24 Hours
  • Honeycomb Insulated Cap for maximum temperature retention
  • Ensures pure taste and no flavor transfer
  • Versatile, middle-of-the-road size
  • Supplied with leakproof Flex Cap
  • Standard Mouth opening
  • Dishwasher safe
  • Dimensions: 28 x 7cm
  • Weight: 340g


Bottle material
Stainless steel


Volume (ml)
Bottle features
BPA free, Insulated, Leak proof, Suitable for hot drinks
Cap type
Screw cap

Other features

Hydro Flask
Ideal For
Athleisure, Festival Camping, Hiking, Travel
Outdoor accessories
Drinking Equipment
Product Code
Reviews (134)

User Reviews (134)

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