I have several of these now, and they are great at keeping water cold for hours. I have let ice water sit in one all day just to see how it holds up, and I still have ice in my water after 12 hours. The one time my bottle failed the insulation test, Hydro Flasks customer service replaced it without hassle. The only downside is that they do dent kind of easy upon dropping them, but I have yet to have a dent mess up the insulation. Also, you can buy a boot for them in multiple colors to protect them a little better, and accessorize them. The 32oz is the perfect size for me, as it holds enough water to keep at my work desk without refilling too often, and it fits in the side pocket of my backpack easily. The variety of colors to choose from is an added bonus.
Rating:
[5 of 5 Stars!]