HeatMax Body & Hand Super Warmers - Air-Activated, Up to 18 Hours of Heat - 3 Individual Warmers

I had a bunch of these in my junk drawer that went bad by the time I went to use them, so I had to pick up more. The ones I got were fresh and had a manufacturer expiration more than 1 year out so they look pretty fresh.The hand warmer took about 30 minute to get to full operating temp, which was about 130*, and held that temp for a full 6 hours. Even at about 8 hours I noticed some heat but it started to die down around 120* and that was when I stopped testing and recording the time and temp logs.While I still prefer my zippo refillable hand warmer (which I just fill with VM&P Naptha from the hardware store since it’s the same as zippo fluid at a fraction of the cost) for day to day use in the winter since it saves if landfill trash - these still have their place. Since I have a dozen extra after my intended usage, I made sure to load up the cars and emergency kits!

Okay this product might not warm your heart but it will warm you up and it literally lasts all day I put one in each pocket on cold days and they stay warm all day and when your working with your hands all day I cannot stress enough how important it is to have a quality product like these to make sure your hands stay warm dry and attached to your wrists. At this price I will be using them on every cold day from now on

3pk value for your money, one size fits all, great for outdoor use, nice and warm for a long time.

Come on, we’ve all used hot hands, we know the deal. These arrived fresh and not hard, worked well and as expected.

Kept my hands warm while watching football outdoors in New England weather. I don't think it lasted for 18 hours but it lasted long enough. I'd rather have this size for my hands than the normal one.

I was surprised at how hot these actually get. When there's at their hottest, they're too hot for me to hold in my hand for long. I didn't try them in my pocket in the winter to warm my hands so in that case the heat might not be too much.I'm going to use them for under my blanket this winter because I don't want to leave a propane heater running all night long, and I wanted to see how hot they get and how long they stay hot. They can lose some heat after awhile but when you take them out, shake them a bit, they reactivate and get just as hot as they were before. I didn't check the clock but I think I pulled one out at around 9 or 10 pm, and in the morning, I could still shake it and it would still activate. It will work great for what I need.

These are nice to tuck into your mittens or coat pocket to keep your hands warm!

Great to hand out to our homeless friends -Keep them warm .I’ve not used them, but great idea