This Kold water bottle does exactly what it says. I placed a regular water bottle, a foil-insulated water bottle, and this Kold water bottle, all filled with the same temperature of cold water on my front porch in the sun, and then 2 hours later measured the temperature in each. Only this bottle kept the water cold. Sure, we can talk about the nifty carabiner lid, the stainless steel vacuum sealed technology and durability – all those things are nice, but the bottom line is that quite simply, it works.
As you can see from my video, this bottle is absolutely deserving of its 5 star rating. Highly recommended. Get yours at http://amzn.to/2bs6Mcm