IRON °FLASK Camping & Hiking Hydration Flask with 3 Lids - Stainless Steel, Double Walled & Vacuum Insulated Water Bottle - Leak Proof & BPA Free (Twilight Blue, Spout - 32 oz)

Very good material and keeps your liquids cold or hot. I've had cold water in it for 12 hours or so, and it's still kinda cold or cool after that time.

I bought a 32oz size and I find it is put together very nice. 3 different lids included and the paint job is perfect. Minor downside I’ve found during 90°+ days the Iron Flask doesn’t hold ice as long as other brand vac sealed double wall brands I also have. Not a big deal as I drink the entire 32oz before a full ice melt and I just add more ice. A CB branded bottle I have can keep the ice for many hours and refills. But that’s okay. It works and I do like the way the bottle looks.

Unfortunately, the bottle arrived with dents on both sides and one of the lids was damaged.While the bottle itself functions, it does not meet the promised performance. It keeps cold liquids cool for only half the day. Additionally, two out of the three lids do not maintain a proper seal, resulting in significant condensation. This makes the bottle inconvenient to use, as condensation drips every time you try to drink. Only the fully closed lid works well and prevents any condensation.After some use, the inside of the bottle developed a metallic odor and taste. Although it can be cleaned with hot water and appropriate cleaning products, this now needs to be done daily.Despite various cleaning techniques, the metallic taste persists. I will avoid this brand in the future.I have switched to Takeya, hoping for a better experience.

The bottle states that it keeps things cold for up to 24 hrs and it's far from the truth. I have plenty of other bottles that hold the cold longer than this one