Thermos - Charcoal Ultimate Flask (900ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold

This is an excellent Thermos. I’m just back from Antarctica with temps in the -20’s and -30’s. This flask kept my coffee warm, and it was great to have a drink of hot coffee on my breaks up Vinson. One thing I would change is I would go for the smaller size.

Great product. As described.

I haven't had the opportunity to keep anything cold in this Thermos yet, but I can say it definitely keeps my tea hot 24 hrs. I pre-heat it for about 10-20 mins before filling with hot tea, and it keeps it steaming hot 24 hours. It could possibly keep it hot longer, but I usually drink the last cup right at 24 hours after filling.

Great product for outdoors use. Have used it for snow shoeing, mountaineering and ice climbing. Very light weight for a vacuum thermos. 13.6 oz vs 10.9 for 1L Nalgene + OR water bottle parka. Keeps liquids hot all day in freezing conditions. Heat retention is far superior to my Hydro Flask in the freezing conditions.

I love it Helps me to keep on drinking hot tea all day long

great

Use it for winter hiking and I really like it as it holds hot tea longer then any other thermoses I tried. I like very hot tea at the end of the trail. Love it

I received a unit this afternoon. When I took the instruction inside out of the thermos and shook the bottle I can hear some noise like a small piece of metal is moving up and down with the shaking motion. I’ll request a new unit in case it’s broken.