5 Recommended Insoles for Safety Shoes | What a Shoe Fitter Would Choose
We have published an updated version of this article. You can view it here.
"My soles start throbbing by the evening."
"I've started feeling a dull pain in my heels."
"My legs feel like lead when I get home."
I often hear these complaints from people working in factories, warehouses, and construction sites.
The cause is usually the same: safety shoes are built heavy to protect the toes, and the soles are hard. If you wear them all day, it's no wonder your feet suffer.
However, it is often more effective to replace the insole than to replace the safety shoes themselves.
I have spent 17 years working in shoe fitting at specialty stores and now work for a shoe manufacturer. Based on my experience dealing with the "foot pain problem" of safety shoes, I have selected only the insoles I can truly recommend.
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I'll give you the conclusion first.
If you're unsure, choose this.
→ Ashimaru Walking III
I've tested many insoles in the shoe industry over the last 20 years, and it's rare to find a model in this price range that balances cushioning and support so well. The thick cushioning absorbs shock while the built-in plate firmly supports the arch of the foot. It is particularly compatible with shoes that have the "triple burden" of being heavy, hard, and worn for long hours, like safety shoes.
I will introduce five products later, but if you don't want to struggle with your first choice, take a look at the Walking III first.
To begin with, why are safety shoes so tiring?
The accumulation of weight
Compared to sneakers, safety shoes are quite heavy. Even if the difference per step is small, if you take thousands or tens of thousands of steps a day, the difference becomes larger than you might imagine.
Hard soles resonate through the feet
Safety shoes are made with priority on durability and safety, so shock absorption is rarely considered. People working on concrete floors are in an environment where shock easily accumulates in the soles of their feet.
Stock insoles are basically just for show
To be honest, the insoles that come with shoes are often made with cost as the priority. The reason the comfort changes drastically just by switching the insole is because the original ones are low-quality. Conversely, this also means there is plenty of room for improvement.
How to choose an insole and common mistakes
Thinking "softer is better" is a mistake
When you see low-rebound material insoles at a home improvement store, you might think, "This looks good." But if it's just soft, your foot will sink in too deeply, making it unstable. As a result, there are cases where it puts extra strain on your ankles and knees, making you feel tired more easily.
A combination of cushioning and support is important
The points to look for in an insole for safety shoes are whether it has both cushioning to absorb shock and support to keep the arch of the foot from collapsing. In addition to that, considering that they will be used heavily every day, durability is also essential.
1st Place | Ashimaru Walking III
I think this is the most compatible with safety shoes
There are other insoles with high cushioning, but the Walking III is different because it adds arch support via a plate. It doesn't just "sink in"; you get a sense of being "supported," and the wobbling of your feet while walking is clearly reduced.
People who stand or walk on concrete floors for long periods should be able to feel the difference more easily. It is especially suitable for those in factories, warehouses, logistics, and manufacturing.
This is one I want people who are concerned about arch fatigue or heavy feet in the evening to try.
To be honest about the disadvantages
Because it contains a plate, it is slightly heavier than ultra-lightweight models. However, since safety shoes themselves are heavy to begin with, I don't think you will notice it at all when actually wearing them.
2nd Place | New Balance RCP280
Suitable for people using insoles for the first time
If you put these in safety shoes where the original insoles are thin and hard, you will immediately feel the shock to the soles of your feet soften. This is also the model that I have received the most feedback on in sales, with people saying, "I should have tried this sooner."
The arch support is not too tight, so it is easy to use regardless of foot shape. It can also be used in sneakers other than safety shoes or for everyday wear, so it is also suitable for those seeking versatility.
To be honest about the disadvantages
The support is lower than the Ashimaru. If you have a job that requires a lot of standing or if you expect to use them for long hours, I think the Walking III will result in higher satisfaction.
3rd Place | Superfeet Green
A pair that hits home for people whose arches get tired easily
Superfeet is a globally recognized brand, and the Green model offers the strongest arch support among them. For those who tend to have flat feet or whose arches easily collapse, it provides a sense of stability that no other insole can match.
It is intended for those who want to prevent foot collapse and want firm support.
To be honest about the downsides
Because the support is strong, some people may feel it's a bit strange at first. It's the type that suits those it fits perfectly rather than being for everyone. It is especially recommended for people with lower arches or a tendency toward flat feet.
4th Place | SIDAS 3D Comfort
This is for those who walk long distances
It has a high sense of unity with the foot and offers excellent stability while walking. It is suitable for people who walk around all day in warehouse or logistics jobs, or for those concerned about foot instability.
To be honest about the downsides
The price is a bit high. Please choose this model with the understanding that it prioritizes fit and stability over cushioning.
5th Place | BMZ Cuboid Power All Fit
For those who dislike the sensation of having their arches lifted
Many insoles take the approach of pushing up the arch to provide support, but BMZ is different. It is designed to make it easier to use your toes naturally by supporting the cuboid bone (the bone on the outside of the foot).
I think it is easy to fit for people who feel uncomfortable wearing arch support types or for those who want to use their toes while standing at work. Since it is thin, another advantage is that it is less likely to cramp the inside of safety shoes.
To be honest about the downsides
It is not suitable for those seeking shock absorption. If you expect cushioning like Ashimal, you will find it lacking. It is strictly a model that prioritizes support and ease of movement.
Frequently Asked Questions
Can I layer it on top of the original insole?
Please do not do this. Layering them will narrow the space inside the shoe, causing the foot to be compressed and actually leading to pain. Always remove the original insole before replacing it.
Do I have to use expensive insoles?
That is not the case. There are models around 3,000 to 5,000 yen that provide sufficient effectiveness. I recommend the Ashimaru Walking III because it offers a great balance between cost and performance.
When should I replace them?
If you wear them every day, the guideline is six months to a year. However, if you feel like your feet have been getting tired again lately, take that as a sign and check the bottom of the insole. If it is crushed or has lost its original shape, it is time to replace it.
Summary
Safety shoes are heavy, hard, and worn for long hours. Because these three factors combine, they are shoes where the effects of an insole are particularly noticeable.
The one I recommend as your first pair remains the Ashimaru Walking III. The balance of price, cushioning, and support is outstanding in this price range.
→ See the Ashimaru Walking III on Amazon
If you are suffering from foot fatigue in safety shoes, please try this first.
※ This article was drafted and structured using AI, and then edited and supplemented by the author, an active shoe fitter, based on their own experience and knowledge.
Author Profile
Over 20 years of experience in the footwear industry. After 17 years of retail sales at a shoe specialty store (men's shoes, sneakers, women's and children's shoes), I am currently in charge of sales and product planning at a shoe manufacturer in the Kansai region. I hold a shoe fitter certification.
I regularly read fashion magazines like Begin, 2nd, and Lightning to keep up with trends in shoes and fashion.
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