HotHands Insole Foot Warmers - Long Lasting Safe Natural Odorless Air Activated Warmers - Up to 9 Hours of Heat - 16 Pair, Black

I work on an outside dock year round, and i hunt. I live in Western New York, and as any resident of the great lakes will tell you, its not the cold that gets you as much as the dampness dose. The insoles are advertised as "size 9 - 11" keep in mind they will be smaller than the actual size indicated, otherwise they would not fit in your boots. This leads me to my next point. You will need to wear a good pair of boots with these warmers to realize the full potential of them. Wear at least an 800 milligram thinsulate boot. Old style foam insulated boots, fashionable dress boots, uninsulated leather boots or work shoes and sneakers will not hold the heat, this is not the insoles fault, its the footwear's. Heat loss and thus the numbing cold you experience is the result of heat transfer from your sole to what ever surface your walking on. If you want an added measure of insulation use Dr. Scholl's insoles under these to help keep the heat in your boots. The insoles do last up to 8 hours, however these have a shelf life and if you have older ones in your inventory they will not last as long. But fortunately the self life is long, i have used insoles that were 4 years old and still realized about 4 to 5 hours of heat. Walking around dose keep your feet warm, and distributes the heat generated by the insoles, but to much walking will make your foot uncomfortable hot. If your foot is to big to be totally covered by the insole get the toe warmers to place in the front of your boot, and keep the insoles on your instep and heel. If used properly and with the right foot wear these insoles will give you hours of comfort in cold conditions as low as negative four degrees F, yes i said (-4)F! I cannot comment on colder temperatures, as the coldest the dock ever got to was -4, but i can say walking on a concrete platform for hours on end, on a -4 night with these in my boots kept my feet warm to the point where i was comfortable. These insole work very well when used properly, i highly recommend them!

My husband volunteers at a golf club and arrives before dawn to work. He has relyed on these warmers and the foot warmers during the cold weather. They remain warm for hours. The price is reasonable and I recommend them for anyone who works outdoors and wants to keep your feet and hands watm.

Love these. They keep my toes warm in the cold Ohio winters. We have livestock and spend a lot of time outside but our feet stay warm and comfortable. They do not bunch up and stay comfortable on the bottom of your sock.

A must have for working outdoors all winter long. They stay in place and provide some warmth from the cold. Love to gift to others too

Was out for 5+ hours in -30 degree temp. My feet never got cold. Definitely recommend

They are great! I use those during winter hiking season in the white mountains of NH. I used them for very cold days (temp in the teens) and kept my feet warm.

These foot warmers last a long time in keeping your feet warm. We use them for a patient who has circulation issues and is wheelchair bound and he's been able to sleep through the night due to ease of use and keeping his feet toasty. They are worth the money and will re-order. The length is generous. Great for home or outside use.

They do keep feet warm

These are the best since sliced bread. I order them every year as they keep my feet so toasty. The warmth lasts all day. Great product.

We purchased these when riding our side by side in colder weather. They work great, fit very comfortably in the boot and last up to 8 hours. Gave a few sets to our son in law as he works outdoors 90% of the day and he loves them. The hand warmers are also great, keeping our hands nice and toasty.

Kept my feet cosy standing around in subzero conditions- recommended

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La caja llegó abierta pero venían completos y cerrados los sobres. Los utilicé para mi viaje a -35 grados en Alaska y me funcionaron súper bien, mantuvieron calientes mis pies o por lo menos en algún punto, que no se me congelaran o dolieran por frío.