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21 oz Standard Mouth Water Bottle-Hydro Flask-Starfish-Uncle Dan's, Rock/Creek, and Gearhead Outfitters
21 oz Standard Mouth Water Bottle-Hydro Flask-Snapper-Uncle Dan's, Rock/Creek, and Gearhead Outfitters
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX001_Black
21 oz Standard Mouth Water Bottle-Hydro Flask-Laguna-Uncle Dan's, Rock/Creek, and Gearhead Outfitters
21 oz Standard Mouth Water Bottle-Hydro Flask-Seagrass-Uncle Dan's, Rock/Creek, and Gearhead Outfitters
standard-mouth-water-bottle-21oz-with-flex-cap-s21sx_Olive
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX407_Cobalt
standard-mouth-water-bottle-21oz-with-flex-cap-s21sx_Pacific
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX508_Fog
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX720_Sunflower
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX650_Hibiscus
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX340_Spearmint
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX618_Watermelon
standard-mouth-water-bottle-21oz-with-flex-cap-s21sx_Stone
Hydro Flask 21 oz Standard Mouth Water Bottle-S21SX110_White

21 oz Standard Mouth Water Bottle

Style: S21SX
Regular price $32.95
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Keep life moving with our 21 oz bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles.

  • Details

    Technology

    TempShield™
    Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.

    Pro-Grade Stainless Steel
    Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer - and the durable construction stands up for whatever life brings.

    Proprietary Powder Coat
    Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.

    Features

    • Versatile, middle-of-the-road size
    • TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours
    • Durable 18/8 Pro-Grade Stainless Steel construction
    • BPA-Free and Phthalate-Free

    Specs

    • Volume: 621 mL
    • Mouth Diameter: 1.91"
    • Diameter: 2.81"
    • Height: 9.4"
    • Weight: 11.3 oz

Technology

TempShield™
Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.

Pro-Grade Stainless Steel
Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer - and the durable construction stands up for whatever life brings.

Proprietary Powder Coat
Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.

Features

  • Versatile, middle-of-the-road size
  • TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours
  • Durable 18/8 Pro-Grade Stainless Steel construction
  • BPA-Free and Phthalate-Free

Specs

  • Volume: 621 mL
  • Mouth Diameter: 1.91"
  • Diameter: 2.81"
  • Height: 9.4"
  • Weight: 11.3 oz