Squeaky orthotics are almost always caused by friction between the bottom of the insert and the insole of your shoe. Every step creates a tiny sliding motion between those two surfaces, and when the materials catch and release rapidly, you get that embarrassing chirping sound. The good news: this is a fixable problem, and most solutions take less than five minutes.
Why Orthotics Squeak
The noise comes from the contact point where the hard or semi-rigid shell of your orthotic rubs against the smooth surface inside your shoe. The underside of the orthotic, particularly the front (distal) end, slides slightly with each step. When conditions are right, that friction produces sound the same way a finger dragged across a clean window does. Smooth plastic orthotics in shoes with smooth, synthetic insoles are the worst combination. Moisture from sweat can make it worse on some days and better on others, which is why the squeaking may seem random.
Baby Powder: The Fastest Fix
The simplest and most widely recommended solution is talcum powder or baby powder. Remove your orthotics, sprinkle a generous amount of powder into the shoe, then place the orthotics back in. The powder acts as a dry lubricant between the two surfaces, breaking up the friction that causes noise.
The most common mistake is being too conservative with the powder. You need more than you think. The Foot & Ankle Center of Washington specifically notes that you should have to dump out excess powder after application. If the squeaking returns after a day or two, add more. Johnson’s Baby Powder is frequently cited by podiatrists as the most effective option, likely because its fine particle size coats surfaces evenly.
One downside: powder wears off over time and needs reapplication, especially if your feet sweat heavily. You may need to reapply every few days until the orthotic surfaces naturally wear in.
Moleskin or Adhesive Tape
For a longer-lasting fix, apply adhesive moleskin or medical tape to the underside of the orthotic, focusing on the front end where most of the sliding contact occurs. This creates a soft, fabric-like barrier between the orthotic shell and the shoe’s insole. The tape reduces abrasion friction and can eliminate the squeak entirely.
Moleskin is ideal because it’s thin enough not to change the fit of the orthotic in your shoe and has a soft, slightly fuzzy surface that absorbs vibration rather than transmitting it. Cut a piece to match the shape of the orthotic’s front section, peel off the backing, and press it firmly onto the underside. Check every couple of weeks to make sure the adhesive is still holding, and replace it when it starts to peel.
Silicone Lubricant for Stubborn Squeaks
If powder and tape haven’t solved the problem, a small amount of silicone-based lubricant applied to the contact points between the orthotic and shoe can work. Apply a thin layer, then wipe off any excess so it doesn’t transfer to socks or make the orthotic slip around inside the shoe. Some podiatrists even suggest a light touch of WD-40 at the friction points, though silicone spray is the cleaner option and less likely to leave an oily residue.
Use lubricants sparingly. You want just enough to prevent the surfaces from gripping each other, not enough to make the orthotic slide freely. A single spray or drop at each contact point is plenty.
Dryer Sheets as a Quick Alternative
A fabric dryer sheet placed under the orthotic can serve as both a friction barrier and a mild lubricant, since dryer sheets are coated with a thin layer of waxy softener. Trim the sheet to fit the footbed of your shoe, lay it flat, and place the orthotic on top. This won’t last as long as moleskin, but it’s a handy fix when you’re away from home and need an immediate solution. Replace the sheet every few days or whenever the squeaking returns.
When the Squeak Means Something Else
New orthotics sometimes squeak more because the surfaces haven’t worn against each other yet. As the orthotic shell and shoe insole develop subtle micro-abrasions from daily use, the friction profile changes, and squeaking often resolves on its own within the first few weeks. If you’ve just started wearing custom orthotics, give them three to four weeks of regular use before concluding something is wrong.
Persistent squeaking after that break-in period, especially if it happens in every pair of shoes, could mean the orthotic doesn’t sit flush against the shoe bed. An orthotic that rocks slightly or has a gap beneath the arch will shift more with each step, creating more friction and more noise. In that case, your orthotist or pedorthist can adjust the fit by modifying the shell shape or adding padding to stabilize it.
Matching the Fix to the Problem
- Squeak only in certain shoes: The issue is likely the specific insole material in those shoes. Try powder or moleskin in just that pair.
- Squeak in every shoe: The orthotic’s bottom surface is the culprit. Apply moleskin directly to the orthotic so the fix travels with you.
- Squeak that comes and goes with weather: Moisture is changing the friction between surfaces. Powder works well here since it absorbs sweat while reducing friction. Letting shoes air out overnight also helps.
- Squeak only when orthotics are new: Give them a few weeks. The surfaces will naturally roughen and the noise will likely fade.
Most people find that baby powder alone solves the problem. If it doesn’t, moleskin on the underside of the front end of the orthotic is the most reliable permanent fix. Both are cheap, reversible, and won’t damage your orthotics or shoes.