The catalog of our online store includes socks and insoles with electric heating. They provide heating of the feet up to +40°C, while being able to maintain heat for 4 hours.
Features of heating products
The ortholite mixture is used as the main material for the manufacture of shoe inserts. Heating of socks and insoles is achieved using regular batteries or a battery. On average, their resource lasts for 3-4 hours of device operation.
To maintain optimal temperature, the design includes flexible heating elements. On the insoles they are located in the center, between the arch of the foot and the toes.
The power source is embedded in a plastic container and attached to the leg using an elastic cover. There are models of insoles and socks that are equipped with remote controls. This makes it easier to control the device and allows you to change heating modes even while moving.
Equipment
The standard kit includes the following elements:
- a pair of insoles/socks;
- 2 lithium-ion batteries/AA battery packs;
- charger (for products with a battery);
- attaching the power source to the leg.
The battery capacity is in the range of 2600-3400 mAh.
Dimensions
Heated shoe insoles are universal. The size of shoe inserts ranges from 36-46 cm, and the user can independently adjust their parameters.
To do this, you just need to place your foot on a thermal insole or take measurements using a ruler. Then all that remains is to put a mark and trim the excess fabric along the dotted line.
Prepare your sleigh in the summer - says a Slavic proverb. If a sled is not needed, then warm shoes are what is in demand in winter: by outdoor workers, by athletes in winter sports, and simply by pedestrians standing at frosty stops.
But shoes don't always keep you warm. Additional insoles will not help even when you wear several socks. What is the solution: endure the cold again or come up with something, or try something invented by someone?
Ship insoles
Global companies also offer a solution, but at inflated, from the Russians’ point of view, prices for their products for warming feet in winter shoes. To roughly understand what they are, just go to websites that sell heated insoles and look at their photos.
Insoles filled with electric heating elements for long-term use or disposable use are inserted into boots or boots. They were initially, most likely, developed using space technology, and then reached ordinary consumers in countries with cold winter climates, including Russia. This was the case with the now famous “Velcro”, which today is used everywhere in everyday life.
As always, the craftsmen did not stand aside and will tell you what heated insoles are. They themselves contributed to the electric heating of the legs. Let's tell you more about this; it is possible that many people use recommendations for making shoe heat convectors on their own.
What to make a “stove” for feet from?
An insole or orthosis is inserted into a shoe for a number of functions. And more for medicinal purposes - for pain in the foot and joints due to arthrosis and injuries, correction. Not a word about the heat preservation function.
Only in the comments are there messages about how to make simply warm insoles - from felt, foil foam and construction insoles. We will offer ideas on how to make heated insoles. Anyone can cope with this task.
Below are step-by-step instructions on how to make insoles with your own hands. Let's show the example of insoles with autonomous heating from a mini-battery (battery) with adjustable temperature.
There are a number of factors to consider. First: choose insoles with a base that does not conduct heat well - so that they do not “sink” into the sole, but warm your feet. Insoles made of felt with a thickness of 0.5 centimeters are suitable according to their characteristics.
Second factor: experiments have shown that the area of the feet that freezes most in the cold is the toes. So they need to be heated, and the blood heated in them will insulate the rest.
And this will save on energy costs, because electric current is generated not by a powerful car battery, but by the one that powers smartphones and tablets. That is, the battery must fit in the pocket of a person whose feet are heated by the insoles. The best heated insoles on charge.
The heating element of the homemade device is a wire with a predominance of two types of metal - nickel and chromium. It, wound in a spiral for greater power, serves as a heating element for household electric stoves. For insoles, a wire ten times shorter (48 cm) and much thinner (0.3 mm) is sufficient. It can be taken from any non-working 300 watt heater. Sometimes you can buy it at an electrical store for 20 rubles.
Buy a voltage regulator from four volts and above in a Chinese store. If you don’t want to bother with homemade products, buy factory-made electric insoles with charging in the same market.
But the master himself assembled the convector on insoles
The heating thread was laid across the insole so that when walking with bends in the sole, the wires would not move. The entire length of the nichrome is sewn to the base.
There is room for a second layer of heating element. It will be mounted on a leather base, and it transfers heat well to the feet. In this case, little energy is lost, and the skin does not warp from the heating of the elements. The leather insole is sewn to the bottom - the seams will pass between the nichrome threads.
Two nichrome contacts are removed from the insole, two stranded copper wires up to one and a half meters long each (plus and minus the battery) are soldered to them.
Note! 
"Power station" for insoles
The main element is a 7.2-volt nickel-metal hydride battery with a current of 5000 milliamps per hour. Without additional charging from the mains, the battery will warm your feet for 5 to 11 hours of continuous operation. The heating of shoes depends on the above parameters - voltage and current.
A 12 volt battery is better. The maximum heating is 60 degrees, but the adjustment keeps it at any comfortable level, and not overheating. It’s worse than frost – it will raise blood pressure in people over 50.
Factory heaters
ThermaCell company offers insoles weighing 0.5 kg each for almost 16 thousand rubles. A strange price, because the same devices will be delivered through an online store much cheaper. It is not clear why the price is being increased. The insoles - for size 46 - only heat up for up to five hours. Then recharge the battery.
The WarmSpa kit has a budget price – through Yandex Market – 3750, on AliExpress – 1450 rubles. But with two batteries, for 3-6 hours of operation. There is a color heating indicator, convenient for adjusting the temperature. The downside is the thick insole - up to half a centimeter.
There are insoles on sale with replaceable batteries made in Russia - they cost about 1,200 rubles. Warms up your fingers well. Batteries can be changed without removing the insoles. Severe frost reduces the voltage and current of the batteries.
Note! 
Blazewear insoles are heated by a pair of AA lithium batteries. The compartment with them is attached to the leg with Velcro.
Self-heating insoles from Heat Generator. Chemical heating - up to six hours. The elements are bio-ecological. The insoles are light and comfortable to wear in shoes. The cost is simply ridiculous - less than 300 rubles.
Photo of heated insoles
Note! 
An attempt to warm your feet with a high-tech solution.
Field test failure. The review is superficial, look for performance characteristics from the seller. There are only emotions and conclusions here.
Why and for what.
I lead an active lifestyle and walk my child a lot. In winter, children have fun - sleds, slides, snowballs... But I hate skiing, and I have to trample from foot to foot while my baby is frolicking. I decided to take a risk and spend money on this device in the hope of warming my feet while walking.No sooner said than done.
Contents of delivery.
2 dimensionless insoles, which you need to cut yourself to the desired size. There is a battery built into the heel of the insole.
On the back we see a charging socket (for a thin Nokia) and a power switch. 
The heating element itself is relatively small. It is located in the front part of the insole - you can see its outline in the photo below. It turns out that a small area somewhere around the fingers will heat up. 
Charging power supply with 2 plugs for thin Nokia. There are 2a indicators on the unit that should signal the end of the charging process. (red light - charging, green - charging complete). 
Radio remote control. Allows you to turn off the heating or turn it on in one of 3 heating modes (strong, medium, weak). The remote control works reliably at a distance of 3 meters. The signal passes through a concrete wall normally. 
I notice one unpleasant feature. The insole is quite thick. 
It is clear that there is a battery there, but the suspicion crept in that wearing such insoles would not be comfortable. Besides, the idea of stepping on the battery with your heel does not warm the soul. What if he gets damaged? In general, there are a lot of questions. But let's move on.
Tests in the apartment.
I'm charging the batteries. I note an unpleasant feature. The charging plug is difficult to plug in. The thick insole material gets in the way. The plugs try to pop out.I note the time and arm myself with a cheap thermometer.
The apartment is initially quite warm.
The thermometer shows ~26 degrees. 
I turn on the minimum heating mode.
A minute later, the temperature is already 30 degrees.
Third minute - 33 g
At the end of the 5th minute - 37 degrees. 
I turn on the maximum heating mode and reset the time
After a minute the temperature is 45 degrees.
Another minute and it’s already 56 degrees.
5 minutes in maximum heating mode - 60 g 
10 minutes 62 gr.
The temperature does not rise above 62-65 degrees (the right and left insoles heat up slightly differently). I checked the insoles 30 minutes after turning them on - I see the same 62-65 degrees. I didn’t try it further.
What happens when heated? 62 degrees maximum heating, minus 26 degrees ambient temperature - it turns out to be +36 degrees. In theory, if the boots have cooled down to zero degrees, the insole will heat them up by 36 degrees. In practice, most likely this figure will be 2a times less. Those. I would really expect that the temperature in the boot would be 15-20 degrees higher than the ambient temperature. It might not be so bad when it's zero degrees outside. But in -25 frost, this insole will not save you.
Field test failure.
I cut one insole to fit my size and began to put it in all my winter boots. To my great disappointment, I realized that ordinary leather men's boots are not designed for such a thick insole. Even if you take the original insole out of the boots (which is generally not very smart), the foot still won’t fit due to the very thick insole with the battery. Perhaps if you choose a special style of boots, where there is sufficient room for the foot, then you can use this insole, but my shoes turned out to be not suitable for this. Probably, if you put this insole in something like tacky construction boots-shoe covers, then there will be no problems. But I don’t wear such shoes and there is no point in buying such shoes on purpose either.Conclusions.
Overall a bad purchase.Doesn't fit in regular winter shoes.
It's hard to trample the battery underfoot.
Inconvenient to charge.
Quite low heat.
There is no feedback on the remote control (it is not clear whether the insoles are turned on or not)
There is no low battery indicator.
In general, they lie around and gather dust. I can’t imagine what to do with them now. Thank you for your attention. (there will be no animals - terry allergies)
I'm planning to buy +7 Add to favorites I liked the review +30 +62Winter can be very cold and harsh. This is especially true for places close to the Arctic Circle. Regardless, everyone experiences a cold month or few days from time to time. At this time, your feet can become very cold, and then you are not far from getting sick. Heated insoles can help you cope with frost.
Who will benefit from insoles?
In addition to cold days and very harsh living conditions, there is also simple everyday life. Such a device will not be superfluous for people whose feet are simply cold. They are mandatory for people who spend a long time on the street, whether for work or vocation. I am now talking about sellers at open markets, for whom the working day involves being in different conditions, especially in winter.
In addition, battery-powered heated insoles can help fishermen, for whom this is, if not a mandatory attribute, then desirable and recommended. Hunters also fall into this category, along with people who also work outdoors, regardless of the time of year. These could be farmers, builders, drivers.
How the insoles work
The overall design always consists of several unchanged parts. We are talking about the insole itself, the heating element, which is usually a thin thread of conductor, and the power source.
You've probably already guessed that you can make heated insoles yourself. To do this, you need to select the components yourself. There may be some improvements that depend more on the craftsman who makes the insoles.
When choosing a conductor, be sure to take into account the resistance; you can’t go wrong with it. Calculations play a very important role when working on insoles.
A simple system, a photo of which can be easily found on the Internet, provides for the presence of several power sources. Usually they use simple batteries, which are installed from three pieces. Why? It's all about the several modes of operation of such insoles.
In the first, the batteries will operate at 2/3 of their capacity. This mode ensures that the insoles are constantly kept warm. The second uses the full power of the power source, while the insoles heat up much more and become hot.
It is stipulated that in this mode they should not cause burns or severe discomfort. This is needed more for very low temperatures. Both of these modes should be tested several times before using the insoles personally.
There is no need to save time on this process, as faulty insoles can cause serious harm to your feet.
Materials for making insoles
Nichrome is a good conductor of heat. A thin thread of 2 tenths of a millimeter will be enough, which will reach 25-30 centimeters. After connecting it to the power system, you should check the conductor. This is necessary in order to find out how homemade heated insoles will behave.
To do this, take a not very thick cloth, place the thread connected to the batteries in this cloth, and hold it tightly in your hand. The temperature should be high enough to heat your hand, but not too high so as to burn it. Based on the results obtained, we adjust the temperature.
Let's return to the power source. As mentioned earlier, simple AA batteries will do. Two of these batteries can provide you with a charge of just over 250 milliamp hours. At the same time, three batteries contain up to 400 milliamp hours. Next, we select the required battery volume, which will determine the operating time of the insoles in heating mode.
The instructions on how to make heated insoles at home will tell you more situational components. These include additional conductors that will connect the nichrome thread and other consumables.
Manufacturing process
First you need to connect a nichrome thread with a wire that will lead to the batteries. To do this you will need contact sleeves. The cable should be at least 45 centimeters longer than needed to reach the insole.
How and where the thread will be laid is something everyone will decide for themselves. Most often it is concentrated in the front part of the insole, which freezes the most.
Next you will need to work with a simple needle and thread. Yes, the heating element needs to be fixed, and almost nothing is better for this than a simple thread. At the same time, the other end of the wire will receive a 3.5 mm plug that will connect to the battery system.
Next comes the power source. it will be attached to the leg, and therefore it needs a body. it is selected based on batteries with one condition - no matter how many of them you take, the case must accommodate one more. This is needed for the controller and the connector that will work with the mini jack.
Having finished working with the soldering iron, you will need to secure the whole thing, for which you will need hot glue. To prevent the batteries from falling out, take two simple rubber bands and put them on the top and bottom of the device.
Everything that we have now needs to be somehow secured to the leg. A simple Velcro tape works well for this. It will require holes in the body that will need to be drilled. Then we connect the two parts with threads and the device is ready for use.
Photo of heated insoles
Feet are very sensitive to low temperatures. Even the warmest and highest quality shoes are sometimes unable to completely protect your feet from the cold. The result of hypothermia in the feet is illness, and most importantly, a decrease in immunity. Therefore, it is very important to keep your feet warm. In winter, heated insoles will do the job perfectly. They can be purchased in stores or made yourself.
Heated insoles
The design of heating insoles is quite simple. There are two types: chemical and with heating element. Each operating principle has positive and negative sides.
Chemical ones are often disposable. Sold in sealed bags. After printing, shake them to initiate a chemical reaction. Then they are put into shoes or glued to socks (if the manufacturer has provided a self-adhesive side). Heating occurs due to the oxidation of iron. To prevent burns, sodium chloride and salt are added, which slow down the oxidation process. Sawdust can also be added to the mixture to absorb moisture and odor.
Chemical heaters operate for up to 6 hours. The main condition is air circulation to supply oxygen for the oxidation process. If the shoes fit tightly, your feet will not feel warm.
Insoles with a heating element are distinguished by the fact that the heat comes from a metal wire or plate. They are connected to a battery, but you can use regular batteries if you wish. Heated insoles are:
- wired;
- wireless.
Wired ones are connected to an external battery. Some models have a power regulator. Thickness is standard. The operating time of the wired heater reaches 12 hours.
In wireless ones, the battery is built directly into the heel. Operating time from 3 to 6 hours. There are models with a remote control that allow you to turn it off, for example, when entering a building. Insoles without a remote control will have to be removed.
Manufacturing instructions
The insole with a heating element has a very simple design. Therefore, you can make them yourself. To make heated insoles with your own hands, you will need the following materials:
First you need to connect the nichrome thread to the MGTF wire. You can use hot melt glue for this. Then you should decide where the nichrome wire will be laid. It all depends on which part of the feet freezes the most. Or you can attach nichrome over the entire surface.
Next, you need to lay the wire in a spiral at a distance of 1 cm. To attach nichrome, you just need to sew it with a thick thread. Make stitches at a distance of no more than 3 cm. Solder the selected plug to the second end and insulate it with heat shrink. This will allow you to quickly connect and disconnect from the power source.
For the power source, two AA batteries will be sufficient. The case can be taken from an old radio, flashlight or, for example, Tetris. You need to solder the socket for connecting the nichrome wire and secure it with hot glue. Make two slits in the body. To attach it to the leg, take a strip of fabric with Velcro sewn on and thread it through. Insert batteries.
This electric heating of the feet can be done in 1 hour if all the materials are available. The wire is heated to approximately 35 degrees. If this is not enough, then you can add a third battery to the circuit.
Review of models from the store
Of course, you can make heated insoles very quickly and for little money yourself, but they can fail at the wrong time. And they look much worse than store-bought ones.
Manufacturer: ThermaCELL
ThermaCell heated insoles are designed for winter and any cool weather. Waterproof and remote controlled, which avoids discomfort when operating with gloves. The battery is designed for 5 hours of operation and 500 charge and discharge cycles. Fully charged in 3 hours.
They have 3 operating modes:
- Off (no heating).
- Medium heat (about 39 degrees).
- High heat (about 44 degrees).
Country of origin - USA.
Blazewear Company
Simple and comfortable insoles. Easily cut to the desired shoe size. The carbon plate emits excellent infrared light, thanks to which heating reaches up to 46 degrees. The plate is located in front of the fingers. You can use both regular batteries and AA batteries. The battery charge lasts for 3-5 hours. They have two control units on which the insoles are turned on and off. The thickness of the insole is 5 mm.
This simple invention will always come in handy when ice fishing, hiking or in cold weather.
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