42oz Product Dimensions
Volume: 42 ounces
Weight: 254.9 grams
Height: 12 inches
Diameter: 3.85 inches


Length: 5.5 inches
Width: 1.25 inches
Height: 3.5 inches



  1. Large Capacity Bike Cage
  2. Fits the Polar Bottle Big42 bottle
  3. Vinyl-coated stainless steel
  4. Two bracket attachment system designed to handle extra weight and vibration of larger bottles


  1. 42oz fluid capacity
  2. Double wall insulated to keep water cold twice as long
  3. Dishwasher and freezer safe
  4. Made in USA
  5. Removable drinking valve for easy cleaning
  6. Phthalate and BPA free.
  7. Removable CarryLoop™
  8. Removable CarryLoop™
  9. Lightweight and durable
  10. The Big 42 fits on large bike cages
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Frequently Asked Questions

The Polar Bottle Big 42 is manufactured in our Boulder, CO headquarters with parts sourced from Denver, CO and Garden City, MO.

Polar Bottle products are made from PP, LDPE, HDPE, and Tritan™ plastics, which are free of harmful chemicals like BPA and Phthalates. To the furthest extent of current scientific knowledge, none of these plastics contain harmful chemicals that may leach into the liquid contained in the bottle. The well-being of our customers is of the highest priority to our company and plastic safety is an issue we take very seriously.

Polar Bottle water bottles have always been BPA and Phthalate Free. More about our Safe Plastic >> (LINK)

Our thermal testing has found that Big 42 will keep your drink cold more than twice as long as a standard single-wall, uninsulated bottle.

In order to maximize the effectiveness of the bottle, we recommend pre-freezing the water in the Big 42 before use. Fill your bottle halfway full with water and freeze overnight. The giant ice cube that results will keep your drink chilly for hours (do not fill the bottle more than half way before freezing, as the water must have room to expand as it freezes).

We have designed our products to be reusable and incredibly durable. Many of our customers are still happily using bottles they purchased in the mid-‘90s, when the Polar Bottle Sport was originally released. This is not an uncommon feat. However, when you decide it’s time to retire your Polar Bottle water bottle, they are completely recyclable. To recycle the bottle, simply separate the outer plastic bottle, foil liner and inner plastic bottle and recycle them separately. Or, if you prefer, send in your old bottle back to our warehouse and we would be happy to recycle it for you!

The bottle is also made in America from locally sourced parts. This allows us to minimize shipping costs and the environmental impact that goes along with them. The fact that our entire operation – from sales to production to shipping – takes place under one roof further reduces overhead, energy use, and environmental strain.

The Big 42 fits on large bike cages, like the TwoFish Quick Cage. We suggest measuring your frame to be sure it can accommodate this larger capacity bottle. Big 42 will not fit into most cup holders.

We suggest measuring your frame to be sure it can accommodate this larger capacity bottle.

The TwoFish cage attaches using two velcro straps. Simply loop the straps through your frame and tighten down to secure.

Because the cage securely mounts with two velcro straps, this helps handle the extra weight and vibration of larger bottles to reduce damage to the frame.

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