How To · Fashion · Shoes
The insole strategy that actually works in heels
The right insole transforms a heel from a four-hour endurance test into something you can actually wear. Here's how to choose one that stays put and doesn't sabotage your fit.
5 min read · IrisHeel pain isn't something you have to accept as the price of looking polished. The problem usually isn't the heel itself—it's that your foot is sliding forward, your arch is unsupported, or pressure is concentrating on the ball of your foot. A proper insole or orthotic redistributes that pressure and keeps your foot stable, which means less strain and more wearability.
The catch: not every insole works in heels. Thick cushioning designed for sneakers will bunch up and create pressure points. Rigid orthotics meant for flat shoes won't flex with the angle of your foot. You need something thin, strategic, and specifically engineered for the heel environment.
The goal isn't maximum cushioning—it's the right cushioning in the right places, plus something to stop your foot from sliding.
What you'll need.
- 01Gel insoles (thin, flexible, 3–5mm thickness)
- 02Metatarsal pads (targeted cushioning for ball of foot)
- 03Heel cups (arch and heel support)
- 04Heel grip pads (prevent forward sliding)
- 05Moleskin or non-slip tape (improve adhesion)
- 06Fine sandpaper (roughen shoe interior if needed)
Diagnose your specific problem · 3 minutes
Identify what's actually hurting
Before you buy anything, wear the heel for 10 minutes and notice where pain or discomfort appears. Is it your arch? The ball of your foot? Your heel slipping forward? Are your toes getting numb? Different problems need different solutions. Arch pain suggests you need support; ball-of-foot pain means you need targeted cushioning; forward sliding means you need grip or a heel grip device. Write down the exact location and sensation so you don't waste money on the wrong product.
If multiple areas hurt, you may need a combination approach—an insole plus a separate heel grip or toe pad.
Choose the right insole format · 2 minutes
Full insole vs. targeted cushioning
Full insoles replace the shoe's existing insole and provide arch support plus cushioning across the whole foot. They work best in roomier heels and are ideal if you need consistent support. Targeted pads—like metatarsal pads or heel cups—stick to the inside of your shoe and address one problem area without taking up much space. They're better for tight heels or if you only need support in one spot. Gel inserts are thin and flexible, making them the least likely to change your shoe's fit. Rigid orthotics are the most supportive but also the bulkiest and may not work in all heel styles.
Measure your heel's interior width and depth before ordering. A full insole that's too wide will bunch up and create new pressure points.
Test fit and adhesion · 4 minutes
Make sure it stays in place
Insert the insole or pad into your heel and walk around for at least two minutes. Your foot should not slide forward or backward inside the shoe. If it does, the insole is too small or the shoe's interior is too slippery. Check that the insole doesn't bunch up at the toe or create a ridge that presses into your foot. If it's a stick-on pad, press it firmly into place and wait 30 seconds for the adhesive to set before wearing. Some people add a thin layer of moleskin or non-slip tape to the bottom of an insole to prevent sliding.
If your heel is very smooth inside, roughen the surface lightly with fine sandpaper before applying an adhesive insole.
Do a real-world test · 3 minutes
Wear them for a short outing
Put on the heel with the new insole and go about your normal routine for 30 minutes to an hour—walk around your home, run an errand, or sit at a desk. This isn't the time to wear them to a four-hour event. Notice whether your arch feels supported, whether your foot slides, whether any new pressure points have developed, and whether you feel more stable overall. If you're experiencing new pain or the insole has shifted, it's not the right match. If you feel noticeably better, you've found a winner.
Wear the same socks or hosiery you'd normally wear with the heel. Thickness matters for fit.
Combine with a heel grip if needed · 2 minutes
Stop forward sliding
Even with a great insole, some heels have slippery interiors that let your foot slide forward. A heel grip—a thin adhesive pad that sticks to the inside back of the shoe—prevents this without adding bulk. Apply it to the heel cup area, smooth out air bubbles, and let it set for a few hours before wearing. This is especially useful for pumps and slingbacks. Heel grips are cheap ($5–$10) and solve a major comfort problem, so don't skip this step if sliding is your issue.
Replace heel grips every few months or when they lose stickiness. They're disposable and worth the small cost.
Rotate your heels and replace insoles · Ongoing
Maintenance and longevity
Don't wear the same pair of heels every day. Rotating between two or three pairs gives insoles time to decompress and extends both the shoe's and the insole's lifespan. Gel insoles typically last 6–12 months before they compress and lose cushioning. Full insoles may last longer if they're higher quality. When an insole starts to feel flat or your pain returns, it's time to replace it. Keep a spare insole on hand so you can swap it in without disrupting your routine.
Store heels in a cool, dry place. Heat and humidity break down adhesive insoles faster.
How to know your insole is working
The right insole should feel nearly invisible once you're wearing the shoe. You shouldn't notice it as a separate object; instead, you should notice that your foot feels more stable, less painful, and less likely to slide. If you're thinking about your feet less, the insole is doing its job.
Questions at the mirror.
My insole keeps sliding around inside my heel. What do I do?
The insole is either too small for the shoe or the interior is too slippery. Try a slightly larger size or one with better adhesive backing. You can also add moleskin or non-slip tape to the bottom of the insole for extra grip. If the shoe's interior is very smooth, lightly roughen it with fine sandpaper before applying the insole.
The insole makes my heel feel too tight. Can I trim it?
Yes, but carefully. Use sharp scissors or a utility knife to trim the insole along the edges, not the heel or arch area. Trim a little at a time and test fit after each cut. If trimming doesn't help, the insole is probably too thick for that particular shoe. Try a thinner gel insole or a targeted pad instead of a full insole.
I have orthotics for flat feet, but they don't fit in my heels. What should I do?
Orthotics designed for everyday shoes are usually too rigid and bulky for heels. Talk to your podiatrist about heel-specific orthotics, which are thinner and more flexible. Alternatively, use a gel insole or metatarsal pad in your heels and reserve your full orthotics for flats and sneakers. You don't need the same level of support in a heel because the heel angle already provides some arch lift.
Is it normal for my feet to hurt less in heels with an insole than in flats?
Not exactly, but it's possible if the insole is well-designed and your flats lack support. A good insole in a heel can redistribute pressure more effectively than a flat shoe with no support. That said, heels are inherently less comfortable than flats for most people. If your feet hurt less in heels, it's likely because the insole is doing excellent work—not because heels are suddenly comfortable.