The best shoes for insoles: which shoe fits your insole?
Even the best insole does little in the wrong shoe. This guide covers what to look for when buying shoes for insoles, which insole suits which type of shoe, and what to do when it does not quite fit.
You have picked out a good insole, you slide it into your shoe and... your toes hit the front, your heel slips up and after an hour you just want to walk barefoot. Sound familiar? More often than not, the insole is not the problem, the shoe is. An insole needs room, and the shoe has to provide it. Below you will find everything about the best shoes for insoles: what to check in the store, how to spot an unsuitable shoe straight away, what changes per type of shoe, and what to do when an insole almost fits.
Why the shoe matters as much as the insole
An insole or orthotic never works in isolation from the shoe. The insole supports your foot from below, but the shoe determines how much room it gets, how stable your heel stays and whether your foot slides forward with every step. Think of a mattress and a bed base: put the best mattress on a sagging base and you will hardly notice the difference.
What goes wrong when there is too little room is easy to predict. An insole has thickness. Place it on top of the existing sock liner and your foot sits a few millimetres higher. In a low-volume shoe that immediately means less room above your toes, more pressure on your instep and a heel that slips out more easily. That does not feel like support, it feels like a shoe that is too small.
The opposite happens too: in a shoe that is too roomy or too soft, the insole slides around. So the gain is in the combination. Want to know the difference between the types of insoles first? Read insoles or orthotics as well.
What to look for in a shoe: the checklist
You can run through these points in the store in under a minute. Go in this order, because the first one matters most by far.
- A removable sock liner. This is the defining feature of a shoe that works with insoles. Grab the liner at the heel and pull it up. If it comes out, you free up exactly the room your new insole needs. If it is glued down, your insole sits on top of it and you lose depth.
- Enough depth and volume. Look at the height of the upper above your instep and toes. Shoes with a roomy toe box and a proper heel-to-toe build have room to spare. A flat, low-cut shoe does not.
- A firm heel counter. Squeeze the back of the shoe between thumb and finger. If it folds completely flat, it will not hold your heel in place and the insole will tip with it. A heel counter that pushes back keeps everything centred.
- An adjustable closure. Laces, a strap or a buckle let you tighten or loosen the shoe once the insole is in. With a slip-on you do not have that flexibility.
- Enough toe room. Stand up with the insole already in place. There should be roughly a thumb's width of room at the front, and your toes should still move without touching the upper.
- A shoe that bends in the right spot. It should flex at the ball of the foot, not in the middle. Also try to wring it out like a cloth: if it barely gives, the base is stable enough.
If a shoe ticks the first four boxes, your insole will most likely sit comfortably. Skip the first one and it becomes a gamble.
How to spot a shoe that is not suitable
These shoes almost always cause trouble the moment you add an insole or orthotic:
- A glued-in sock liner. Many fashion shoes and cheap sneakers have a liner that will not come out. Your insole ends up on top of it and you lose millimetres of height straight away.
- Very flat, thin models. Ballet flats, wafer-thin plimsolls and fashionable loafers have almost no volume. There is simply nowhere to put anything.
- No heel hold. Mules, clogs and sandals without a heel strap do not secure your foot. Your toes start gripping and the insole shifts with every step.
- Shoes that already fit exactly without an insole. If a shoe feels moulded to your bare foot, there is by definition no room left.
- Narrow, pointed models. A pointed toe squeezes your forefoot together, which does not pair well with an insole that lets it spread slightly.
Watch the signals while wearing them, too. Pressure on your instep after half an hour, toes hitting the front, a heel lifting out or an insole creeping forward all point to too little room in the shoe rather than the wrong insole. Switch shoes first before drawing conclusions.
By shoe type: sneaker, dress shoe, work boot, sandal and slipper
Not every shoe calls for the same insole. Here is what changes per type.
Sneakers and walking shoes
By far the easiest category: almost always a removable liner, laces and plenty of volume. Take the original liner out and put your own insole in its place. For sport and long walks, pick an insole with some cushioning and a decent heel cup.
Dress shoes
Things get tighter here. Leather lace-ups and buckle shoes usually work, as long as the liner comes out. A slimmer model often helps: a three-quarter insole that stops behind the ball of the foot. You keep the heel cup and arch support without losing toe room. With heels the rule is simple: the higher the heel, the less room there is for a full-length insole.
Work boots and safety shoes
These almost always have a removable liner and plenty of volume, so space is rarely the issue. Do watch the steel or composite toe cap: it sets a fixed height above your toes, so a thick insole can press. A certified shoe has also been tested with its original liner. More on that in our article on insoles for safety shoes.
Sandals and open shoes
The trickiest category, because there is no upper holding the insole in place. It can still work if the sandal has an adjustable heel or ankle strap, a footbed with a raised edge and adjustable straps across the instep. Choose a three-quarter or trimmed insole so it does not stick out at the sides. Flip-flops with only a toe post are not suitable.
Slippers and house shoes
At home you are often on your feet for most of the day, and that is exactly where support gets forgotten. Choose slippers with a closed heel or heel strap, a real outsole under the footbed and preferably a removable liner. On hard floors, a cushioned insole in your slippers often makes more difference than you would expect.
Three practical tips to match insole and shoe
Insole not a perfect fit right away? That is often fixable. These three tips help most.
Tip 1: start with the sock liner test
The fastest way to know whether an insole fits is to use the original liner as a template.
- Take the original liner out of the shoe. If it will not come out, the shoe is probably less suitable.
- Place your new insole on top of it, heels lined up exactly.
- Check where the new insole sticks out: only at the front, or at the sides as well?
- Only at the front? Then you can trim it. If it overhangs noticeably at the sides, the shoe is too narrow.
Tip 2: trim the insole to size
Bracefox insoles and orthotics can be trimmed to size, so you can use them in virtually any suitable shoe. The underside has size lines to guide you.
- Place the original liner on top of your Bracefox insole, heels together.
- Trace the front edge of the original liner with a pen or marker.
- Cut just outside the line, a millimetre too wide rather than too narrow. Use sturdy scissors and cut in one smooth motion.
- Slide the insole all the way back against the heel. If it is not lying flat yet, trim a little more in small steps.
- Never cut at the heel or the arch: those are the parts that provide the support.
Tip 3: give yourself time to adjust
A new insole feels different for the first few days. That is normal: your foot sits in a slightly different position than it is used to.
- Wear the insoles for about an hour on day one, in a shoe you normally walk comfortably in.
- Build up by roughly an hour a day until you wear them all day.
- Feeling pressure somewhere? Take them out and try again the next day for a shorter stretch.
- If the pressure is still there after two weeks, or you develop new pain, stop wearing them and ask for advice.
Not sure which model suits you? Our insole buying guide walks you through the options.
When to ask a podiatrist for advice
An off-the-shelf insole is a good starting point for many people. Still, there are situations where it is wiser to see a podiatrist, an orthopaedic shoe technician or your GP first.
- Persistent pain in your foot, heel, knee, hip or lower back that does not ease after a few weeks.
- A clear difference between left and right, for example in leg length or foot position.
- Diabetes, rheumatism or reduced sensation in your feet. You are less likely to notice a pressure point yourself.
- Surgery or an injury to your foot, ankle or leg.
- You have already tried an insole and walking still feels uncomfortable after a proper adjustment period.
- It concerns a child's foot that is still developing.
A podiatrist looks at your entire gait pattern and can judge whether a standard insole is enough or a custom-made solution suits you better. Usually your shoes are part of that advice as well.
Our recommendations
If you want an insole that fits most everyday shoes, the Bracefox AeroSoll Daily Insoles are a solid all-rounder. The profile is deliberately slim, so the insole still works in shoes with less volume, and the size lines on the underside make trimming straightforward. Handy for sneakers, lace-up dress shoes and the slippers you spend all day in.
If you play sport, cover long distances or spend a lot of time on hard surfaces, the Bracefox EnduSole Sport Insoles are the logical choice. This insole is made for higher-volume shoes such as trainers and hiking boots, combining cushioning in the heel with a firm build under the arch. These trim to size easily as well.
Frequently asked questions
Should I buy half a size up when wearing orthotics?
Not always. If the shoe has a removable liner, taking it out usually frees up exactly enough room. Only with a glued-in liner or very little volume does half a size up help; in that case pick a model with an adjustable closure.
Can I leave the original sock liner in?
Better not. Two layers make the shoe unnecessarily tight and the top one will slide. Replace the original liner with your insole. Only with a three-quarter insole that stops behind the ball of the foot do you sometimes leave it in.
Can Bracefox insoles be trimmed to size?
Yes. Our insoles and orthotics can be trimmed. Use the original liner as a template, trace the front edge and cut just outside the line. Only cut at the front, never at the heel or the arch.
Do insoles fit in sandals?
They can, provided the sandal has a closed or adjustable heel strap, adjustable straps over the instep and a footbed with a raised edge. Choose a trimmed or three-quarter insole. Flip-flops with only a toe post are not suitable.
Are insoles suitable for safety shoes?
Usually yes: safety shoes often have a removable liner and plenty of volume. Do check that the shoe was tested with its original liner and that your toes keep room under the cap. If the cap presses, choose a slimmer profile.
How do I know whether it is the shoe or the insole?
Put the same insole in another shoe, ideally a lace-up sneaker with a removable liner. If that walks comfortably, the first shoe was the problem. If both still feel uncomfortable after two weeks, ask a podiatrist for advice.
