Hydro Flask 21 oz Standard Mouth Insulated Bottle + Flex Cap - 621ml - Black

Hydro Flask Standard Mouth - Your perfect travel companion.

Keep life moving with the Hydro Flask 21 oz bottle and standard flex cap. It stows easily in a small shoulder bag, in the side pocket of your backpack, or in the cup holder of the car, and provides enough ice-cold refreshment to keep you moving for hours without weighing you down. No wonder it's one of Hydro Flask's best-selling water bottles.

Highlights of the Hydro Flask 21 oz Standard Mouth insulated flask

• TempShield™
  Unique double-wall vacuum insulation protects temperature for hours. Cold drinks stay ice cold and hot drinks stay hot, so you can stay refreshed for any adventure.
• Pro-Grade Stainless Steel
  Made of 18/8 pro-grade stainless steel to ensure pure flavor and no flavor transfer - and the durable construction stands up to anything life throws at it.
• Proprietary Powder Coating
  Proprietary powder coating means a non-slip, sweat-free, extra-durable bottle you can take anywhere.

Product benefits of the Hydro Flask 21 oz Standard Mouth Thermal Bottle - 621ml

• Versatile, medium size
• TempShield™ insulation eliminates condensation and keeps drinks cold for up to 24 hours and hot for up to 12 hours
• Durable 18/8 pro-grade stainless steel construction
• BPA-free and phthalate-free
• Compatible with standard sports cap with mouthpiece insulation
• Fits in bottle cage