Hydro Flask 21 oz Standard Mouth
Hydration on the Go.
Our 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.
Unique Product Benefits
- Easy to Transport
- Versatile, middle-of-the-road size
- TempShieldTM Protected
- Keeps cold up to 24 hours
- Keeps hot up to 6 hours
- 18/8 Pro Grade Stainless Steel
- BPA-Free and Phthalate-Free
- Durable, sweat-free powder coat finish (or our Classic Stainless option)
- Lifetime Warranty
- Compatible with Standard Loop Cap and Sport Cap