Barefoot shoes and conventional shoes differ in the width of the toe box, the flexibility and thickness of the sole, the difference in height between heel and toe, the weight and the rigid elements built into them. That said, if you look at what the published research says, the difference with the most support behind it is none of these: it's whether the shoe is the right size, and that's where most children's shoes fall short, whatever type they are.
This guide covers both: how the two types of shoe differ, and what is actually known about each difference. Including what goes against what we usually argue, because that's information you need too.
In this guide
- Comparison table: exactly what changes
- What is known about each difference (and what isn't)
- Barefoot, minimalist and "respectful": are they the same thing?
- What Emmi Pikler wrote in 1969
- What no shoe can do for your little one
- When each feature matters most, stage by stage
- What to check before you buy, with the shoe in your hand
- Frequently asked questions
Comparison table: exactly what changes
| What to look at | Barefoot or minimalist shoes | Conventional shoes |
|---|---|---|
| Toe box (the toe area) | Wide and foot-shaped: the widest part is at the toes | Narrows towards the tip |
| Last | Follows the outline of the foot, straighter | Often tapered so the shoe "looks nice" |
| Sole: flexibility | Bends and twists by hand with no effort | Rigid or semi-rigid |
| Sole: thickness | Thin | Thick, with cushioning |
| Drop (heel-to-toe height difference) | Zero, the foot rests flat | Between 5 and 15 mm, sometimes more |
| Weight | Light | Heavier, because of the sole and reinforcements |
| Heel counter (the heel piece) | Soft or absent | Rigid |
| Insole | Flat and removable | Often with a pre-formed arch |
| Fit | Through an adjustable fastening | Sometimes through pressure from the shoe itself |
What is known about each difference (and what isn't)
This is where this guide parts ways with almost everything else you'll read on the subject. We sell barefoot shoes, so it's only fair that you know what backs up each thing we say.
First of all, the big picture. The best available reviews on children's feet and footwear themselves report low or very low certainty: the systematic review by Hollander and colleagues (2017) speaks of "limited or very limited evidence", and the 2022 Cochrane review on paediatric flat feet of "low to very low certainty". That's why here you'll read "the available evidence suggests" rather than "it has been proven".
The best supported: size, by a long way
An Austrian study of 858 pre-school children found that 88.8% were wearing indoor shoes that were too short, and it measured something even more important: a dose relationship. The risk of the big toe deviating rose by 17% with shoes one size too small, by 37% with two sizes and by 61% with three.
In Spain, a study in Seville of 505 children aged 3 to 12 found that 66.7% were wearing shoes that were too narrow and 72.5% shoes that were too short. A third were wearing shoes shorter than their own feet.
And one detail that changes how you buy: of 316 pairs analysed in another study, only 3.8% were correctly labelled for size, and 95.3% were shorter inside than their size number said. The number on the box isn't reliable, whether the shoe is barefoot or conventional.
The second best supported: shoes don't correct anything
This point matters because it cuts both ways, including against us.
A trial of 129 children in four groups (control, corrective shoes, heel cups and custom insoles) over at least three years found improvement in every group, including the one that wore nothing, and no difference between the treated groups and the control. The 2022 Cochrane review, covering 16 trials and 1,058 children, concludes that in the absence of pain there is no evidence to support expensive insoles for healthy children with flexible flat feet. And Mosca (2010) puts it bluntly: there is no evidence that any external force or device can create an arch in a child's foot.
If not even a custom insole worn for three years changes the structure of the foot, no shoe changes it either, for better or for worse. Which means we can't tell you our shoes help your little one's arch develop either. They don't, and anyone who tells you otherwise is selling you something.
Well supported in terms of prevalence: width
That most children's shoes are narrow is well documented (the 66.7% in Seville, and up to 98% in a South African study of a population that habitually goes barefoot). Whether that narrowness has a specific effect measured over the long term is another matter, and there the evidence is indirect.
A documented mechanism, with no clinical outcome: flexibility
A meta-analysis of eleven studies found that footwear measurably reduces the range of motion of the big toe and the ankle, and changes muscle activity. The authors themselves conclude that the long-term effect of these changes on growth and development is currently unknown. It's a well-described mechanism, not a proven benefit.
No studies in children: drop, weight and heel counter
We're being clear here because it's the honest thing to do: there isn't a single study on drop in children, there are no paediatric studies on shoe weight and there's no published basis on rigid heel counters, either for or against. These are reasonable design criteria, consistent with "the shoe should get in the way as little as possible", but they aren't health claims and we're not going to sell them to you as such.
And what goes against our own message
Four findings that exist and that almost nobody in the industry mentions:
- In the largest paediatric study available, children who habitually went barefoot showed higher hallux valgus angles in every age group, not lower ones. The authors themselves describe this as surprising. So no, going barefoot doesn't "prevent bunions".
- Barefoot children land more on their heels, not less. The famous "natural forefoot landing" came from studies of adult runners.
- Children wearing shoes sprint faster than barefoot children in all three age groups studied, in the same study the industry cites for balance.
- A rigid sole produced lower peak plantar pressure than an ultra-flexible one in young children.
None of this knocks down the barefoot approach. What it does is show its true size: flexible, wide shoes interfere less, and that makes sense, but they aren't a health intervention.
Barefoot, minimalist and "respectful": are they the same thing?
In the Spanish market they're used as synonyms, although they don't come from the same place. Barefoot means just that, and it's the most searched-for term. Minimalist is the most technical and focuses on what the shoe takes away. Respetuoso ("respectful") is the values-based term and focuses on intention.
It's worth knowing one thing: a barefoot shoe isn't the same as going barefoot. Even shoes designed following barefoot-model recommendations produce noticeable biomechanical differences compared with the bare foot. The best thing for the foot is still to wear nothing, and footwear is always a lesser evil that offers protection. That's why the criterion is "get in the way as little as possible", not "improve something".
And a practical warning: "barefoot" isn't a regulated term. Some shoes use it and still have a narrow toe box. That's why knowing how to look matters more than reading the box.
What Emmi Pikler wrote in 1969
There's one endorsement we're particularly fond of because it doesn't come from a shoe brand. Emmi Pikler, the Hungarian paediatrician who founded the Lóczy institute and developed the whole framework of free movement, wrote about the material conditions babies need:
"If their feet need protecting from the cold, they will wear flexible fabric or knitted shoes that take on the shape of the foot. Until they walk well, they will not wear shoes with rigid soles. And even later, they will only wear them for walks or outdoor play if the weather calls for it."
Flexible, taking on the shape of the foot, no rigid sole until they walk well, and after that only when needed. It is, word for word, the barefoot shoe criterion, written half a century before the word existed and by someone who didn't sell shoes.
What no shoe can do for your little one
There's an idea that comes up a lot in parenting circles: devices that hold, sit up or move a baby before they're ready (bouncers, high chairs, baby walkers, ride-on toys) do something for them that their body should be doing on its own, and that's why they're not recommended.
Exactly the same applies to shoes, and almost nobody says so. A shoe that holds the ankle, imposes an arch or stiffens the heel is doing a job your little one's foot already knows how to do. It's not that it's dangerous: it's that it's unnecessary, and whatever is provided from the outside, the foot stops developing from the inside.
That's why shoes aren't chosen for what they add. They're chosen for how little they take away.
When each feature matters most, stage by stage
Before walking. The foot doesn't need a shoe. Whatever goes on the foot is there to protect it from the cold and the floor: socks, soft-soled booties or fabric shoes. Size matters even here, because a sock that's too short squeezes the toes for many hours a day and you can't see it.
Crawling and pulling up to stand. Your little one pushes off with their toes so the foot acts as a lever. Narrow or rigid shoes get in the way of that.
First steps. Lightness, width and flexibility, plus fit: a shoe that slips around forces the toes to grip it.
Walking confidently (ages 2 to 8). This is when they spend the most hours in shoes, and therefore when size matters most. It's also a good idea to alternate between pairs rather than wearing just one.
What to check before you buy, with the shoe in your hand
- Measure the foot first. It's the only thing backed by a dose-response relationship. Everything else comes after.
- Bend it. It should flex at the toe area, not in the middle of the sole.
- Twist it, as if you were wringing out a cloth.
- Press the heel counter with your thumbs. It should fold inwards.
- Look at it side-on on a table to see whether the heel is raised.
This test works with any brand, including ours.
This article is for information only and does not replace an assessment by a healthcare professional.
Frecuently Asked Questions
What is the difference between minimalist and conventional shoes for foot development?
Minimalist shoes have a wide toe box, a thin, flexible sole, and do not elevate the heel, so the foot moves more freely. A meta-analysis of eleven studies documented that footwear reduces the range of motion of the big toe and ankle, although the authors point out that the long-term effect on development is unknown. What is well documented, and is independent of the type of shoe, is that the wrong size is associated with big toe deviation.
Barefoot or traditional shoes for child development?
The available evidence points to flexible, lightweight footwear with room for the toes interfering less with foot movement. What has not been proven is that it prevents pathologies or that it modifies the structure of the foot in the long term. A traditional shoe that meets those criteria is just as good: what matters are the features, not the label.
Barefoot or normal shoes for babies?
Before walking outdoors, a baby does not need shoes of any kind. Bare feet are enough, and for the cold, a sock or a flexible bootie that does not constrict the toes. When the first shoe arrives, lightweight, wide, and flexible footwear is the one that interferes the least.
Is there a comparison of conventional and minimalist shoes for babies?
Yes, you can find it in the table on this page: toe box, last, flexibility and sole thickness, drop, weight, counter, insole, and type of closure. With an important note: of all those differences, the one with the strongest scientific support does not appear in the table, and that is that the shoe is the correct size.
Respectful or conventional footwear for babies?
"Respectful" and "barefoot" describe the same footwear with different emphasis. Compared to conventional footwear, the practical difference lies in the room for the toes, flexibility, and weight. The difference that is most noticeable in real life, however, is whether it fits well.
Is barefoot footwear better for all children?
Not in all cases or all situations. There are little ones with specific indications from a professional or with prescribed insoles, and in that case, the person in charge of the case has the final say. There are also terrains and activities that require something else. And it is worth remembering that a barefoot shoe is not equivalent to going barefoot.
Does barefoot footwear prevent flat feet or bunions?
No. There is no evidence to support it, and in the case of hallux valgus, there is a large study in children that points exactly in the opposite direction. Furthermore, all babies are born with flat feet and the arch forms on its own during the first decade: it is a normal finding at certain ages, not a problem to be corrected.
