My son sings your praises over and over, how cold ice water stayed. I too was impressed by that, beyond that the quality and durability warrants mention. Great product great green conscious company.
I first got my HydroFlask in the winter of 2018. About two months ago, I had my HydroFlask sitting in my back seat full and ready for a short road trip. Shortly into my trip I got into a car accident and my car flipped four times. My HydroFlask was thrown around and laying on road a little ways away from car. Everything survived with only the tiniest scratch to the paint and not a single dent to it (see picture below). And, when I got it back a full 18 hours later, my water was still cold! I wish I was joking, but I am serious and EVERYONE is getting HydroFlasks for the holidays this year.