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Insoles for work boots: what to look for on long shifts

By the Life in Good Form editors. Updated 2026-10-13.

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Why boots need a better insole

Most work boots are built for protection first. The factory liner is often a thin foam sheet that packs down in weeks. Meanwhile your feet take a beating. The Canadian Centre for Occupational Health and Safety (CCOHS) puts it bluntly: working on a hard floor has the impact of a hammer, pounding the heel at every step.

CCOHS advises considering shock-absorbing insoles where the job requires walking or standing on hard floors, and says a non-slip, resilient insole can reduce discomfort. It also notes that orthotics may help reduce foot issues. An aftermarket insole is one of the simplest ways to add both cushioning and support to a boot you already own.

The specs that matter in a boot insole

• Shock absorption at the heel. Look for a dedicated heel pad or thicker foam under the heel, where hard floors hit hardest.
• A firm but flexible arch. Long hours on your feet load the arch. A semi-rigid shell gives support without making the boot feel stiff.
• A deep heel cup. Boots are roomy around the ankle. A cupped heel keeps the foot from sliding.
• The right volume. A thick insole lifts your foot. In a safety boot, that can push the top of your toes into the cap.
• A grippy, durable top cover. CCOHS mentions a non-slip insole. A cover that grips your sock stops the foot shifting on ladders and slopes.
• Trim-to-fit or sized. Use the old liner as a template so the insole sits flat from heel to toe.

Check the toecap before you commit

Safety boots add a constraint regular shoes do not have. CCOHS says a steel toe cap should cover the whole length of the toes from the tips to beyond the natural bend of the foot, and that if the toecap cuts into the foot, either the size or style of the footwear is incorrect.

A new insole can cause exactly that problem by raising your foot. After fitting it, stand up, bend your knees and roll onto your toes. If you feel the edge of the cap across your toes, choose a thinner insole or a different boot. CCOHS also notes that a soft pad covering the edge of the toecap increases comfort.

If your boots carry a special electrical or static rating, ask the maker whether an aftermarket insole affects it before swapping liners.

Cold sites and wet days

CCOHS warns that normal protective footwear is not designed for cold weather, and that insulated footwear may give little temperature protection in the sole if it has no insulation there. A wool-topped or insulated insole adds a layer between your foot and a cold floor. For outdoor work in deep cold, see our guide to heated insoles.

Wet feet blister and chafe. CCOHS suggests keeping several pairs of shoes and rotating them daily so they can air out. Pull the insoles at the end of a shift so both they and the boots dry.

What the evidence says, and fitting tips

A randomized trial in the Brazilian Journal of Physical Therapy followed 27 women who worked standing still. One group wore custom EVA insoles and the other wore prefabricated insoles for eight weeks. There was no meaningful difference between the groups, but both reported less foot and back pain. In short, a decent insole may help, and a custom one may not add much.

1. Buy boots and fit insoles late in the day. CCOHS says feet are likely to be at their largest in the late afternoon.
2. Fit the bigger foot. CCOHS notes that feet normally differ in size.
3. Do not expect a tight boot to stretch. CCOHS says footwear that is too tight will not stretch with wear, and an insole makes a tight boot tighter.
4. Build up wear over a few shifts if the arch is firmer than you are used to.

If you stand in one spot most of the day rather than walking, our guide to insoles for standing all day goes deeper on that.

What to look for when you buy

Questions people ask

What insoles are best for work boots?

Shock-absorbing insoles with a semi-rigid arch and a deep heel cup suit most hard-floor jobs. CCOHS recommends shock-absorbing insoles where work involves walking or standing on hard floors.

Can I put insoles in steel toe boots?

Yes, if your toes still clear the cap. CCOHS says a toecap that cuts into the foot means the size or style is wrong, so try a thinner insole if it presses.

Do insoles for boots really help with foot pain?

They can. In a randomized trial of 27 women who worked standing, both custom and prefabricated insoles were followed by less foot and back pain over eight weeks.

Should I remove the original insole from my boots?

Yes, in most cases. Stacking insoles raises the foot, crowds the toes and can make the heel slip.

Sources

• Foot Comfort and Safety at Work (ccohs.ca), Canadian Centre for Occupational Health and Safety (CCOHS)
• Working in a Standing Position: Basic Information (ccohs.ca), Canadian Centre for Occupational Health and Safety (CCOHS)
• Comparison of plantar pressure and musculoskeletal symptoms with the use of custom and prefabricated insoles in the work environment (scielo.br), Brazilian Journal of Physical Therapy (2009)
• Diabetes - taking care of your feet (medlineplus.gov), MedlinePlus (NIH)

Sources checked 2026-10-13.