What keeps your water colder or hotter longer, Hydro Flask, or our very well-built and comparable 40oz Endeavor Copper Insulated Thermal Bottle?
Hydro Flask’s are awesome bottles, no doubt. Are they worth extra money you are paying for the brand? That might be up to the buyer, but they very well could be. See for yourself in our Hydro Flask test below!
Our Titan bottle, with matte black and stainless finish, comes in at $33 for only a few with personalization, down to around $13 at higher quantities, with personalization. Compare that to Hydro Flask, around $35+.
We wanted to know how they compared at keeping water cold, so we put them to the test.

Filled with: Same amount of cold water
Same amount of ice (about 8 ice cubes)
Bottle colors: Both BLACK
Bottle Size: 32oz Hydro Flask, Titan 40oz
Start time: 1:11pm
Weather: Sunny
Outside temperature: 90°F at start, up to 97°F
Real Feel temp: 96°F at start, up to 101°F

40oz Insulated Titan bottle | Hydro Flask |
Rated at: HOT 6 hours COLD 12 hours Will it sweat? NO Double wall stainless steel insulation Packaging: Heavy duty box, ready to gift or retail | Rated at: HOT 6 hours COLD 24 hours Will it sweat? NO Double wall stainless steel insulation Packaging: Bulk in poly bag |
So, we left them in the sun for the day. Below are the results!
The outsides of the bottles got HOT to the touch in our Colorado sun! Too hot to pick up after 3 hours!

After 1 hour, no noticeable difference in amount of ice and water was still freezing cold, as expected.


After 3 hours, the surprising results are in!

It might be too close to call, Hydro Flask water still cold, Insulated Titan bottle still with small ice cubes in it (hard to see in photo).
What happened after another hour in the 97°F+ sun? (that’s 4 hours total)
Both still have cold water, but the Insulated Bottle’s was noticeably cooler. The water in the Hydro Flask has already started to warm up a tiny bit.
What happened after 20 hours in the car overnight?
To finish off our comparison, we left both bottles in the car, outside, overnight. Temperatures went from 95°F around 5pm down to 60°F and back up to 70°F for a few hours early morning.
Hydro Flask: Luke warm water
Insulated 40oz Bottle: Cool
Winner in terms of insulation: Insulated 40oz Bottle
There you have it, an unscientific, real-world comparison of Hydro Flask performance against a low cost, high quality generic bottle. While Hydro Flasks’ may look better, and maybe feel better, insulation is on par with other drinkware.
Hopefully this test has helped you decide on which drinkware to purchase for you, your company, team or customers. Did we mention the 40oz Insulated Bottle pricing includes customization? Get it engraved with your logo, wedding party names, or text for a unique, long lasting, high performing gift.
Now, there are ways to improve the insulation of your Hydro Flask or other insulated drinkware, such as filling with cold or hot water 10 minutes before you put your drink in it, so get the insulation cooled down/warmed up. This can make a big difference in performance (but who has time for that?).
We love laser engraved Hydro Flasks and all kinds of drinkware here at LazerDesigns, and we engrave thousands of all kinds of bottles (including Yeti, Swell, Hydro Flask, Thermos, Stanley, you name it we’ve engraved it).
What have you experienced? Leave a comment below to tell us about it!
Have you ever wanted to add more to the Hydro Flask logo? Here at Lazer Designs, we want to help make your dreams come true. We pride ourselves on our custom engraving capabilities. Change up your Hydro Flask by adding a customized logo or graphic to the bottles or drink wear of your choice. No longer will your bottle look like the run of the mill Hydro Flask out on the street. We give you the option to customize your Hydro Flask. You will be stunned with your one of a kind design that is highly durable and long lasting.