Heightening insoles are made of many different materials. Some materials do not have the function of strength and elasticity, so when the heightening insoles are used for a period of time, the soles will be squeezed. If it cannot return to normal, then the practical significance of improvement will naturally be lost.

It is very easy to damage the neck of the shoe, because the raised position of the insole is to increase the relative height of the heel neck, so the neck of the walking shoe can wrap much less of the foot. Then walking will have a dragging feeling, and the neck of the boots will be severely worn.

Extended information:

Notes on inner height-increasing insoles:

If the heel of the shoe is already very high, then adding an additional height-increasing insole will not achieve the desired result. On the contrary, it will be uncomfortable to wear, because if it is too high, it may cause swollen feet.

If the upper of the shoe is relatively low, it is not suitable to put in a heightening insole. Because the height of the insole may be higher than the height of the shoe itself, it will be very uncomfortable to wear, and sometimes it may fall off when walking.

People in adolescence are not suitable for long-term use of height-increasing insoles. This may look beautiful, but it will affect bone development to a certain extent.

Baidu Encyclopedia-Heightening insoles