Cleaning orthotics takes about five minutes with supplies you already have at home: lukewarm water, mild soap, a soft cloth, and a towel. The key rule is to hand-wash and never soak them, since excess water can break down adhesives and warp supportive materials. Here’s the full process, plus how to handle odor and know when cleaning won’t cut it anymore.
Step-by-Step Cleaning Process
Start by removing the orthotics from your shoes so you can reach every surface without getting the shoe wet. Before adding any water, tap the inserts together over a trash can and shake off loose dirt, lint, and grit. This matters because wet debris can scratch the top cover. If buildup is caked on, use a soft-bristle brush to sweep dust off the cover and heel cups.
Next, mix a few drops of gentle dish soap or hand soap into a bowl of lukewarm water. Dip a cloth in the solution, wring it out well, and wipe the orthotic in small circles. Focus on the heel and forefoot areas where sweat concentrates most. Flip the insert over and wipe the underside too. Be careful around glued edges and any seams that are starting to lift, since saturating those spots loosens the adhesive.
To rinse, dampen a second clean cloth with plain water and wipe away all soap residue. Don’t hold the orthotic under a running faucet. Pat the surface dry with a towel, then lay the inserts flat in a well-ventilated spot to finish air-drying completely before putting them back in your shoes. Avoid direct sunlight, radiators, or hair dryers. Heat can warp plastic shells and compress foam permanently.
Disinfecting and Removing Odor
Once the surface grime is gone, a quick disinfecting step handles the bacteria and fungi that cause odor. Mix equal parts white vinegar and water in a spray bottle, or use a diluted rubbing alcohol solution. Lightly mist both sides of the orthotic and let it air-dry. Don’t drench them. This kills odor-causing microbes without the harshness of bleach or hydrogen peroxide, both of which can degrade cover materials.
For persistent smell between cleanings, sprinkling baking soda over the top cover overnight absorbs moisture and neutralizes odor. Just shake it off in the morning before wearing. If you sweat heavily or use your orthotics during exercise, this overnight trick a few times a week makes a noticeable difference.
How Often to Clean Them
For everyday wear, a full hand-wash once a week keeps orthotics in good shape. If you’re wearing them during workouts or in hot weather, bumping that up to twice a week prevents sweat and bacteria from breaking down the top cover faster. The daily minimum is simple: pull the orthotics out of your shoes each night so both the insert and shoe interior can air out. Trapped moisture is the biggest driver of odor buildup and material degradation.
What to Avoid
A few common shortcuts will shorten the life of your orthotics significantly:
- Washing machines and dishwashers. The agitation and heat warp rigid shells and compress foam beyond recovery.
- Soaking in water. Even lukewarm water will delaminate glued layers if the orthotic sits submerged for more than a few seconds.
- Harsh chemicals. Bleach, acetone, and strong disinfectant sprays can crack plastic components and strip leather covers.
- Heat drying. Radiators, dryers, and direct sunlight all distort the shape that makes your orthotic functional.
Caring for Different Materials
Most orthotics combine a rigid or semi-rigid base with a softer top cover, and each layer has different tolerances. Rigid plastic or carbon fiber shells are the most water-resistant, so a damp cloth wipe-down is all they need. Foam bases (common in over-the-counter inserts) absorb water more readily, which is why minimal moisture and thorough drying matter most for these.
Leather top covers need the gentlest approach. Use only a lightly damp cloth with minimal soap, and never saturate the surface. Leather that stays wet too long stiffens, cracks, or peels away from the base. Fabric and synthetic top covers are more forgiving but still shouldn’t be scrubbed aggressively. If your orthotics came with specific care instructions from a podiatrist or manufacturer, follow those first, since specialty covers (like moisture-wicking or antimicrobial fabrics) sometimes have particular restrictions.
Signs Your Orthotics Need Replacing
No amount of cleaning fixes structural wear. Over-the-counter inserts typically last 6 to 12 months, while custom orthotics can last 1 to 5 years depending on the material and how heavily you use them. Watch for these signs that it’s time for a new pair:
- Flattened arch support. If the arch area feels noticeably less supportive than when the orthotic was new, the foam or shell has compressed past its useful life.
- Cracked or broken edges. Cracks in a rigid shell compromise the structural correction the orthotic provides.
- Worn-out top covers. Fabric that’s thinned through, peeling, or permanently discolored despite cleaning no longer manages moisture or friction effectively.
- Returning pain. If the foot, knee, or back symptoms your orthotics were addressing start creeping back, the device may no longer be providing adequate support.
Consistent cleaning extends the life of your orthotics, but it also gives you a regular chance to inspect them. Catching a crack or a flattened arch early means you can get replacements before old symptoms return.