Hydro Flask 21oz Standard Mouth

Hydro Flask 21oz Standard Mouth
  • Color: Mint
  • Color: Flamingo
  • Color: Blueberry
  • Color: Olive
  • Color: Black
  • Color: Lava
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The 21 oz is the perfect go-anywhere companion on your busiest days. It stashes easily in a small shoulder bag, your pack’s side pocket or your car cup holder, and holds enough to keep you going for hours without weighing you down. The 21 oz Standard Mouth is one of Hydro Flasks best selling vacuum insulated water bottles because of it's size and versatility.

  • Versatile, middle-of-the-road size
  • TempShieldTM 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
  • Compatible with Standard Mouth Insulated Sport Cap
  • Lifetime Warranty
Volume621 mL
Mouth Diameter1.91"
Weight11.3 oz


Hydro Flask: Ready for Any Adventure

Part Numbers

Option UPC Store SKU
Flamingo 817318023306 BOT533681069