Heated Insoles, Toe Warmers USB Heated Insoles for Men and Women for Outdoor Sports and Indoor Warmth,Winter Hunting Skiing Fishing Hiking Electric Foot Warmer (Size 8-11/41-45).

These are amazing foot warmers! I got 2 pair for me and my son this hunting season. 1st time in my 30 years of hunting my feet didn't get cold. My hunting boots were frozen to my stand with 11 degree temperatures outside and my feet were toasty warm. I do recommend taping the plugs together if you are putting them down in deep hunting boots to prevent them from coming unplugged.

These work surprisingly well. The 7W of power -- 3.5W per foot -- is enough to keep my 60-year old feet comfortable while walking all afternoon in hiking boots in shallow snow. As noted in other reviews, they require an external USB power source. I consider this a positive for two reasons: 1) the battery is external to the heating sole insert; 2) you can choose the power source. The sole insert is thin, and fits in under the existing sole without any trouble, even in a tight shoe. We happen to have a lot of partly used AA batteries, so I bought a USB brick that takes 4-AA batteries and I use it to power the heaters. If I didn't already have a bunch of AA batteries, I would use a rechargeable Li-Ion USB power pack. Combined, the heated soles consume abut 1.3 Amps (1300 max), so if you wanted to stay out for 10 hours, you would need a 13,000 aH power pack. I just bought a second set of these to put in my other winter shoes.

I love the idea of this product, however. I think the cords would be too much of a hassle.

I love these warmers. I have circulation issues with my feet. My toes are always cold. These warmers have kept my toes nice and toasty.Get a battery pack to be able to wear them when away from a plug. I even wore them in a mild snow storm and I was so comfy warm. I would wear them 24 hrs a day if I could.

The media could not be loaded.  I bought these for the fabulous price point… and I am going to buy more to give to my cold footed friends for Christmas! I was worried that it may not work for me, since my toes are the things that get the coldest. Let me tell you, it works!! I suggest if you’re using these for hunting; wait until you get to the stand before putting them in your boots. You will have toasty feet that aren’t sweaty and you won’t wear them out! The plugs stick out of my hunting boots perfectly. They attach to the phone charger that I already have via USB. The heat is warm but not too warm and they last as long as the battery!

If the ambient air temperature is anything above freezing temperatures, these warmers work great.And It works ok down to around 20-25 degrees.But if you have a problem, their customer service is speedy and fast to fix any issues.

I was really hoping to like these. I have reynaud syndrome so my feet are constantly cold, especially during winter time so I was searching for a product that would keep my feet nice and toasty. This are definitely not it! They barely get warm at all, much less keep my feet nice and warm. I would have sent them back if at all possible. So just beware if you’re looking for a product that gets really warm/hot because this isn’t that.

These are amazing heated insoles for the price! They’re very warm and they don’t change the structure of your insole. I highly recommend!