Insulated bottles / Coolflask
Stainless Steel · 7.8/10

Coolflask Insulated bottles

These high-capacity stainless steel vessels provide reliable temperature retention for athletes and outdoor enthusiasts. Use the multiple lid options to switch between sipping and pouring during long activities

Green insulated bottles Stainless steel bottles Leakproof insulated bottles Bottles with a straw lid Insulated sports bottles 64 oz insulated bottles 1 Gallon insulated bottles
See the bottles How we pick
Standout
Half Gallon Insulated Green Sports Bottle See details
Catalog

Coolflask: 4 bottles

Worth noticing

Triple lid system

Switch between three different leakproof lids for various activities.

High volume capacity

Store up to one gallon of liquid for all-day hydration.

Stainless steel build

Durable metal construction maintains beverage temperatures effectively.

Notes

First-hand notes

David 5.0

The 64 oz size is perfect for my long workouts and the straw lid makes it easy to drink while moving.

Vincent 4.6

I use the 1 Gallon insulated bottle for all-day trips and it stays completely leakproof in my truck.

Cameron 4.9

The green finish looks great and the stainless steel construction feels very solid during outdoor use.

Why we keep it

Heavy Duty Hydration Standards

Coolflask focuses on large-format insulated containers ranging from half-gallon to full-gallon sizes. These models utilize stainless steel and straw lids to support high-volume water intake.

  • 64 oz insulated capacity
  • 128 oz gallon sizing
  • Leakproof lid seals
  • Integrated straw functionality
  • Green powder coat finish
  • Stainless steel vacuum body
Built this way

Large Format Design

The 64 oz and 1 Gallon models are built for users who require significant water volume without frequent refills.

Lid Versatility

Each bottle includes three distinct leakproof lids to accommodate different drinking preferences and flow rates.

Sport Performance

The insulated sports bottles are designed to keep water cold during extended training sessions or outdoor work.

Durable Materials

The use of stainless steel ensures the bottle resists impact while maintaining a clean taste for the contents.

Before you buy

Coolflask Questions

What sizes does Coolflask offer?

Coolflask specializes in large-capacity models including 64 oz half-gallon and 128 oz full-gallon options. These are designed for high-volume hydration needs.

Are the lids spill-resistant?

Yes, the bottles come with leakproof lids to prevent spills during transport. Some models include three different lid styles for versatility.

What material is used for these bottles?

These bottles are constructed from stainless steel. This material provides insulation and durability for sports and outdoor use.

Do these bottles include a straw?

Many models feature a straw lid for easy access. This allows for convenient sipping without tilting the large 64 oz or gallon containers.