Home > Creative handicrafts > Creative Products

Self-heating insoles, a must-have foot warmer in winter without electricity

Autumn is here, and winter is not far away. In addition to keeping your body warm in the cold winter, it is actually also important to keep your feet warm. Take a look at the self-heating insole below, which does not require charging, is safe and environmentally friendly.

Self-heating insoles, a must-have foot warmer in winter without electricity

It can heat to 40℃ in 3-4 minutes, reach above 50℃ in about 10 minutes, and reach about 60℃ in 30 minutes. The heating can last for 8-10 hours. The specific usage time varies depending on the environment. , the highest insole temperature is around 63℃, and the average temperature is 52℃.

Self-heating insoles, a must-have foot warmer in winter without electricity

The insoles are healthy and environmentally friendly, do not add any harmful substances, do not require charging, are safe and environmentally friendly. The raw material formula has been improved several times to generate heat faster and keep the temperature longer. The top layer is made of high-quality non-woven fabric, which dissipates heat evenly and is comfortable and does not burn your feet. The bottom is made of a hard paper shell, which is durable and does not deform.

Self-heating insoles, a must-have foot warmer in winter without electricity

Each self-heating insole uses the latest raw materials, with higher purity, finer powder, better activity, and long-lasting warmth.

Self-heating insoles, a must-have foot warmer in winter without electricity

The heating principle of self-heating insoles: It is composed of three parts: a non-woven fabric layer, a principle layer, and a cardboard card. The raw material layer is placed inside the non-woven fabric layer. The cardboard card maintains its shape without deformation when worn. The raw material layer is Made of iron powder, leech powder, activated carbon, water-absorbent resinIt is a mixture of , salt and other materials that reacts with oxygen in the air to generate heat.

Self-heating insoles, a must-have foot warmer in winter without electricity

Open the outer package, take out the self-heating insole, and then Ordinary insoles can be placed inside the shoes.

Self-heating insoles, a must-have foot warmer in winter without electricity

Why do the insoles sometimes stop getting hot when they are hot? Thats because some shoes have poor air permeability, and there is no air in the internal space. Self-heating insoles need to be in contact with air to generate heat. If there is less air, you will not feel warm. Just take off the shoes and let the air flow into the shoes, so they can continue to heat up after wearing them.