Do Heat-Moldable Insoles Provide Better Support？
There are a number of insole products on the market that can be heated in your oven and molded to the contours of your foot. In theory this makes a lot of sense. An insole that perfectly matches your foot would seem to be the best way to get optimum support. Here’s how they work:
Heat the insoles in the oven - usually to 175 to 200 degrees Fahrenheit. Be careful not to burn them. Some have indicators on them to tell you when they are at the right temperature for molding.
Carefully put them in your shoes. Make sure they have not bunched up in the front of your shoes. Put the shoes on and stand up straight for a few minutes. They will cool and take the shape of your feet.
The new shape closely matches the bottom contour of your foot. Perhaps it sounds great in theory, but in practice it’s a completely different story.
Do Heat-Moldable Insoles Work?
There are 2 fundamental problems.
Most people have less-than-optimal biomechanics. That is why they bought arch-support insoles in the first place. When standing, their feet are in an overpronated position. When insoles are molded to these feet, the overpronation is built into the insoles, ensuring a poor level of support.
Materials that are soft enough to be molded by heat are not firm enough to provide support. If you take a pair of these heat-moldable inserts and push down on the arches, you will see how easily they deflect. Remember, firm support correctly aligns the foot for a comfortable stride. Look at a pair of custom orthotics made by a professional podiatrist or pedorthist. They may be made from a variety of materials, but they will always offer a firm level of support.
So Why Do Heat-Moldable Insoles Get Good Reviews?
99% of the footwear sold today offers very little support. Thus almost everyone feels more comfortable after adding any bit of arch support, including that offered by heat-moldable insoles.