The Coldest Water Insulated Wide Mouth Cap, Patent Pending, was initially built for Professional Athletes in high performing sports.
We believe in taking cold water on the go wherever you are, whether your bik...

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Product Review

The Coldest Water Insulated Wide Mouth Cap, Patent Pending, was initially built for Professional Athletes in high performing sports.
We believe in taking cold water on the go wherever you are, whether your biking, cycling, running, jogging or going to the beach. This cap allows you drink effortlessly with one hand. Simply flip the top, and drink water from it.It is BPA Free, and easy to clean.

Flip Top Bacteria Resistant: The flip top has a unique tab that allows you to push it without your fingers touching the mouth piece.

Multi-compatibility Technology:
We believe in multi-compatibility, so we've extensively tested this with our Widemouth 32 oz and 64 oz - The Coldest Water Bottle, as well as other Stainless Steel Bottle Brands.

Verified Compatibility with:
The Coldest Water Bottle 32 oz and 64 oz
HydroFlask Wide Mouth Bottles
32 oz wide mouth bottles
40 oz wide mouth bottles
64 oz wide mouth bottles

Possible compatibility:

Stainless Steel Bottles with 2.19" inches inner screw mouth diameter.

Incompatible / Does not work with:
The Coldest Water 21 oz Bottle
Hydroflask Standard-mouth Bottles
Hydroflask Narrow-mouth bottles
WaterVault K2/Soda Bottles
Klean Kanteen Standard Bottles and Soda Bottles
Soda Bottles

What's included:
-Wide Mouth Flip Top Cap
-Two Straws
-Brush to easily clean straws
-Caribiner

Our straws are intentionally long so they can fit multiple size bottles. Trim straw with scissors so that it almost touches the bottom.

Enjoy our COLD SOLID guarantee. If for whatever reason you are not 100% happy, we will refund or replace your item.
Click the "Add to Cart" button at the top of the page to order Now.



  • BETTER FLOW - Our newest 2.0 lids have the best suction and flow rate with new and improved design
  • EASY CLEAN - Comes with our straw cleaner to get the hard reach places
  • COMFORT - LATEX FREE soft mouthpiece so you won't chip a tooth while taking a drink during your workout
  • EFFORTLESS - Use one finger to flip open the mouthpiece to take a drink
  • EASY CARRY - All lids come with a carabiner to hook your bottle on the go

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