I love these foot warmers. They're long enough to heat your entire foot, even if you have large feet (I'm a size 15W). They look tiny, maybe women's size 6 or 7, but they're more than enough. However, you need to understand how they work and use them correctly or you'll end up with mild burns.
These create heat by reacting with oxygen in the air. Lots of air movement will make them extremely hot and they'll only last a few hours. Restricting air exposure will throttle them back to a lower heat level for a longer period.
So if you're going to wear waterproofed winter boots and don't plan to move around much, say in a tree stand while hunting or in the bleachers at an outdoor arena, you can go ahead and put them on the bottoms of your socks. You won't be moving much, and the boots won't allow much air in, so you should be good.
If you plan to walk or hike in these though, you need to be careful. Each step will introduce a bit more air, and if you're wearing ventilated shoes or boots, that'll be much worse. They could get very hot, very quickly. The solution for this is simple, instead of attaching them to your socks you should put them on the bottoms of your insoles. That'll make them run cooler, get a solid 8 hours or more out of them, and remove any chance of burns. This is what I do with them all the time actually, and it's only in really cold conditions, say 10F or less, that I ever wish for more heat.
| Item Package Dimensions L x W x H | 12.25 x 4.67 x 1.43 inches |
|---|---|
| Package Weight | 0.25 Kilograms |
| Item Dimensions LxWxH | 2.5 x 0.01 x 7.75 inches |
| Item Weight | 2.5 ounces |
| Brand Name | HotHands |
| Model Name | HotHands Insole Foot Warmer 5-Pairs |
| Color | 1 |
| Suggested Users | 1 |
| Number of Items | 1 |
| Manufacturer | Heatmax, Inc. |
| Part Number | HFINS5PK-T |
| Model Year | 1998 |
| Style | Foot Warmers |
| Included Components | 5 Pairs of insoles |
| Size | 5 Pair |
| Sport Type | 1 |
