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Can You Put Insoles in the Dryer?

Whether you’re an athlete looking to quickly get your insoles ready for the next game, or someone who’s been caught in a downpour, the way you dry your insoles can have significant implications on their performance and lifespan. The idea of popping them into the dryer seems convenient, but the question remains: is it safe? This article dives deep into the proper care of insoles, especially when it comes to drying, to ensure they continue to provide the comfort and support your feet need.

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Footwear insoles serve the critical purpose of cushioning and supporting your feet, alleviating discomfort, and enhancing the fit of your shoes. Given their crucial role, it’s essential to maintain them properly, which includes cleaning and drying them correctly. The temptation to use a dryer for a quick fix is understandable, but the decision should not be made lightly. This article will outline why that might not be the best idea, propose alternative methods, and provide insights on how to best care for your insoles to maintain their efficacy.

Understanding Insole Materials

Insoles come in a range of materials, with foam, gel, leather, and cork among the most common. Foam insoles are particularly sensitive to heat, as the high temperatures can break down the cellular structure of the foam, leading to a loss of elasticity and support. Gel insoles may react adversely to heat by warping or melting, thus losing their cushioning properties. Leather, while durable, can shrink and become hardened when exposed to the intense heat of a dryer, and cork can become brittle and crack. Knowing the material of your insoles is the first step in determining the appropriate care, including the drying process.

Risks of Using a Dryer for Insoles

Using a dryer can seem like a quick solution to wet insoles, but the risks involved make it a method that should be approached with caution. The dryer’s heat can cause irreversible damage such as warping or shrinking, which not only alters the shape of the insoles but can also affect the comfort and support they provide. Furthermore, the tumbling action within a dryer can lead to the material breaking down, particularly if the insoles are of a composite construction, which is common in performance insoles. Additionally, many insoles use adhesives to bind layers or provide structural features, and the heat can weaken or dissolve these adhesives, leading to a disintegration of the insole.

It is also important to remember that warranty claims are usually very specific about the care of insoles. Damage due to inappropriate care, like exposure to high heat in a dryer, can void warranties and leave you with the cost of replacement.

Proper Drying Techniques for Insoles

The consensus among footwear care experts is that air drying insoles at room temperature is the safest method. This avoids exposing them to excessive heat or potential deformation from being crumpled in a dryer. To facilitate air drying, you can remove excess water by pressing the insoles between towels and then leave them to dry on a flat surface. Ensuring they’re completely dry before reinsertion into shoes is critical to prevent the growth of bacteria and the accompanying odor. Patience is key here, as this method may take longer but will significantly extend the life of your insoles.

Alternative Drying Methods

For times when air drying is not feasible or when you need your insoles ready more swiftly, there are a few alternative methods. You can place insoles near a fan or a dehumidifier to accelerate drying. These devices promote air circulation without the damaging heat. It is also possible to use a hair dryer on a cool setting, although you should keep it at a distance to prevent direct, forceful air from causing shape distortion. Lastly, if you own a shoe dryer, ensure it is set to a moderate temperature suitable for the material of your insoles.

Another innovative method involves placing the insoles in a pillowcase and then putting them in a dryer with no heat. This ensures they are not tumbling freely and are protected from the potential damage caused by direct contact with the dryer drum.

Insoles and Shoe Care

Proper insole maintenance is an integral part of overall shoe care. Clean and dry insoles contribute to a healthy foot environment, reducing odors, preventing bacterial growth, and extending the life of both insoles and footwear. Regular inspections for signs of wear and tear can indicate when insoles require cleaning, drying, or even replacement.

When to Replace Insoles

Insoles, despite the best care, have a finite lifespan. Indicators that it’s time to replace your insoles include visible wear, such as holes or tears, decreased support or cushioning, and persistent odors that remain after cleaning. Regularly replacing insoles is crucial for ongoing foot support and hygiene.

Frequently Asked Questions

While the article covers the primary concerns about drying insoles, here are some additional questions that often arise.

Can insoles lose their shape if left out to dry?

When left to dry properly, insoles should maintain their shape. It’s vital, however, to lay them flat and not to stack anything on top of them while they are drying. Distorting the insoles while they are wet can cause them to dry into an incorrect shape, which could make them uncomfortable or unfit for use.

How often should I clean my insoles?

Cleaning frequency depends on usage. If you wear your shoes daily or for athletic activities, a weekly clean can help maintain hygiene. Less frequent use may require less regular cleaning, but a good rule of thumb is to clean insoles whenever there is visible dirt or they start to emit an odor.

Can I use a washing machine to clean my insoles?

Some insoles are machine washable, but you should always check the manufacturer’s instructions before doing so. If they are washable, use a gentle cycle and cold water to avoid damage.

What can I do to eliminate odor from insoles?

Besides regular cleaning, using baking soda or specially formulated foot powders can help eliminate odors. Sprinkle the powder on the insoles and let it sit overnight before shaking it off. This can absorb the smell and leave a fresher scent.

Are there any specific products I should use for insole care?

There are products designed specifically for cleaning various types of insoles. It’s advisable to use these as directed, as they take into account the materials and adhesives used in insole construction. Avoid harsh chemicals that may degrade the materials.


Putting insoles in the dryer is not recommended due to the potential damage that can occur from the heat and tumbling action. Proper care and drying of insoles are critical to ensure they continue to provide the necessary support and comfort. Air drying is the safest method, but when in a pinch, other alternative methods that do not involve heat can be employed. Remember that the care you give your insoles is an investment in the comfort and health of your feet, and by extension, your overall well-being. So, take the time to dry your insoles correctly and they will serve you well for many steps to come.