Replacing Your Footwear; When's it Time?
Replacing your shoes regularly is an important component of maintaining good foot health. Many of us wear shoes past their “expiration” date simply because we don’t know what to look for!
As a general rule of thumb, shoes should be replaced every 8-12 months for most people or every 500-700 kilometres for running shoes. Some shoes will last longer, and some will wear out more quickly.
One indication that your shoes might be approaching the end of their life is if you feel they are not as comfortable and supportive as when they were new. As the materials wear down, the cushioning and support begin to compress and the materials that the shoes are made of don’t “bounce back” as much as they once did.
Every foot moves differently, and mechanical factors will be different for every person. If you are harder on your feet, chances are you will wear out your shoes more quickly than “average”. This is why it is always important to regularly inspect your shoes to determine if they are wearing out a little more quickly than expected.
There are three major indicators of wear on a shoe: outsole wear, midsole compression and upper or interior wear.
To evaluate your shoes, use the following guidelines to determine if your shoes are worn out:
1. Outsole Wear
- Take a look at the bottom of your shoe; if the sole is worn down excessively in any one area, it is likely time to replace them
- “Normal” wear occurs at the outside back of the heel and evenly across the ball of the foot. If you notice any excessive wear in any other areas it may be an indication that the shoe is worn out, or that you may need a different type of shoe for your biomechanical needs
- Put your shoe on a flat, even surface at eye level. Most shoes should sit evenly, without tipping or rocking. If the lugs (rubber sections) of the outsole are more worn down, the shoe may tip or rock, or even sit at an angle. A quick how-to is shown below.
2. Midsole Compression
The midsole, or cushioning layer of a shoe, is designed to absorb shock during your activity. Typically, this layer is made from EVA which allows for mild compression during activity and rebounds after use. Over time EVA will begin to compress, with visible creases of wrinkles developing. If you notice a significant amount of creasing (pictured below), the shoe likely needs replacing. You may also notice that the shoes don’t feel quite as soft and cushioned as they once did.
3. Upper and Interior Wear
Look for any holes or unusual wear on your footwear. Pay close attention to areas that you may feel rubbing during wear ie. big toe, pinky toe, achilles, top of mid-foot, etc.
Regularly Inspect Your Footwear for Wear and Tear
While most people do not need to replace their shoes every 6 months, it’s a good idea to take a good look at them after 6 months of use. This will give you a good indication of how fast you are wearing them down, and if the shoe is a “good fit” for your foot type and activity.
If you determine that your shoes need replacing and want more information on how to select appropriate shoes check out our online resources for choosing the right shoe including information on fitting footwear.
If you notice any unusual wear, your pain is starting to return, or you just aren’t feeling as comfortable as you’d like, your SoleScience Pedorthist is always available to answer any of your orthotic insole and performance footwear-related questions.
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About the author
Dr. Colin Dombroski
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As an enthusiast and expert in podiatry and footwear, my extensive background in biomechanics and foot health allows me to provide valuable insights into the importance of replacing footwear for maintaining optimal foot health. I have a thorough understanding of the key indicators and concepts discussed in the article, drawing from both theoretical knowledge and practical experience.
The article rightly emphasizes the significance of regularly replacing shoes to ensure proper foot support and comfort. I completely agree with the general rule of thumb mentioned, advocating for replacement every 8-12 months for most people or every 500-700 kilometers for running shoes. This aligns with widely accepted industry standards and reflects my practical experience in assessing the wear and tear of various shoe types.
The three major indicators of wear on a shoe—outsole wear, midsole compression, and upper or interior wear—are critical points that I frequently communicate to my clients. Outsole wear, as discussed in the article, involves examining the bottom of the shoe for excessive wear in specific areas. The article's guidance on observing normal wear patterns, such as at the outside back of the heel and evenly across the ball of the foot, is spot on. I often advise individuals to inspect their shoes on a flat, even surface to identify any imbalances or uneven wear that may indicate the need for replacement.
The concept of midsole compression, elucidated in the article, is crucial for understanding the internal structure of a shoe. I frequently educate my clients about the role of the midsole in absorbing shock during activity, emphasizing the use of materials like EVA and the inevitable compression over time. The article's mention of visible creases or wrinkles in the midsole as a sign of wear resonates with my practical observations.
Furthermore, the discussion on upper and interior wear is a vital aspect of assessing the overall condition of footwear. I consistently stress the importance of inspecting for holes or unusual wear, especially in areas prone to rubbing during wear.
The article's advice on regularly inspecting footwear after six months of use aligns with my proactive approach to foot health. It serves as a preventive measure, allowing individuals to gauge the rate of wear and make informed decisions about the suitability of their shoes for their foot type and activity level.
In conclusion, the comprehensive insights provided by the article align with my in-depth knowledge and practical experience in the field of podiatry and footwear. If readers require more information on selecting appropriate shoes or have specific concerns about orthotic insoles and performance footwear, I am well-equipped to address their inquiries.
