Boulder – Cushioned Retro Barefoot Sneakers
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Color Black
Size M 4
Boulder Size Chart
Find your perfect fit
How to Measure Your Feet
OnBarefoot Size Chart
| USA | EU | FOOT LENGTH | ||
|---|---|---|---|---|
| MEN | WOMEN | EU | INCH | CM |
| 5 | 7 | 36 | 9.1 | 23.0 |
| 5.5 | 7.5 | 37 | 9.3 | 23.5 |
| 6.5 | 8.5 | 38 | 9.4 | 24.0 |
| 7 | 9 | 39 | 9.6 | 24.5 |
| 7.5 | 9.5 | 40 | 9.8 | 25.0 |
| 8 | 10 | 41 | 10.0 | 25.5 |
| 8.5 | 10.5 | 42 | 10.2 | 26.0 |
| 9 | 11 | 43 | 10.4 | 26.5 |
| 10 | 12 | 44 | 10.6 | 27.0 |
| 10.5 | 12.5 | 45 | 10.8 | 27.5 |
| 11 | 13 | 46 | 11.0 | 28.0 |
| 11.5 | 13.5 | 47 | 11.2 | 28.5 |
| 12 | 14 | 48 | 11.4 | 29.0 |
Fitting Notes
- Wide toe box designed for natural toe splay
- Between sizes? We recommend sizing up
- These US sizes are matched to this style’s real measurements, so they may differ by half a size from other brands — trust the CM column
- Measure feet at the end of the day when they're largest
- Always use your larger foot's measurement
Need Help Finding Your Size?
Contact us at support@onbarefoot.com
Why your feet hurt
A wider foot does not need a bigger shoe, it needs a wider one
Tap a spot to see why it hurts.
-
When your feet are tilted all day, everything above them adjusts to compensate.
In BoulderHeel and toe sit level, so you stand the way you do barefoot. -
A raised heel tips you forward, and your knees absorb what your feet cannot.
In BoulderNo wedge under the heel pushing your weight onto the front of your foot. -
A stiff sole stops your foot bending, so the work travels up into your lower legs.
In BoulderA flexible sole bends with every step, so your foot does its own work. -
Your toes are held in a point all day, so the widest part of your foot carries the pressure.
In BoulderA foot shaped toe box lets your toes spread and sit flat.
Nothing pressing. Nothing tilting.
What you get with Boulder
A wide, steady base that still looks like a normal shoe
Your toes spread the way they do barefoot
Wide at the toes, so nothing crowds them.
You stand level instead of tipped forward
Flat from heel to toe, so you stand level.
The sole bends with you
A sole that bends with every step.
Footing you can trust
A wear resistant rubber outsole with a multi directional tread.
Cool and dry rather than damp by lunch
Air mesh panels with a canvas lining move air straight through.
On your feet in seconds
Lace them once and they stay set.
The details, if you want them
- Style
- Wide-toe barefoot style casual sneaker
- Shoe type
- Low-top casual walking shoe
- Upper material
- Air mesh with microfiber overlays
- Lining material
- Canvas
- Insole material
- EVA
- Outsole material
- Rubber (wear resistant, anti slip)
- Toe box
- Wide, round, widened toe cap
- Drop
- Zero drop
- Closure
- Lace up (cross-tied)
- Upper coverage
- Below ankle
- Upper construction
- Stitched and bonded
- Toe protection
- Reinforced toe overlay, no metal toe cap
- Heel
- Reinforced heel counter
- Water resistance
- Not waterproof
- Fit
- True to size
- Pattern
- Patchwork panels with contrast side stripes
- Best for
- Everyday casual wear, walking, light outdoor use, travel
- Care
- Wipe clean, air dry (do not machine wash)
What to expect
The first two weeks
Your feet need a few weeks.
Day 1 to 3
Around the house
An hour or two indoors.
Day 4 to 7
Short walks
Short walks outside.
Day 8 to 14
Most of the day
Wear them most of the day.
Day 15 on
Your everyday shoe
Wear them anywhere.
Why it works
What Boulder actually does for your feet
Your toes finally have room
Wide at the toes, like your foot.
You stand level, not tipped forward
Flat from heel to toe.
Your foot actually bends
Bends with every step, wear resistant grip.
The weight
You do not wear your shoes. You lift them, about 7,000 times a day.
A normal sneaker adds a few ounces. You lift it 7,000 times a day.
11.5 oz per shoe
Weight you stop lifting, every day
0 lb
One shoe per step, at 7,000 steps a day.
Why this pair
Boulder against the shoes you wear now
Fit and anatomy
Shaped like a foot, not a wedge
Your toes should sit inside the outline, with room to spread.
Put your foot on the insole. Your toes should sit inside the outline with room to spread.
It gives where your foot needs it to.
Air mesh panels with a canvas lining.
- Foot shapedtoe box, room to splay
- Levelheel and toe on one plane
- True to sizeorder your usual size
No seam across the top, so nothing digs in.
Questions
What people ask before buying
How do I pick my size in the Boulder?
The Boulder fits true to size for most people, so order your usual sneaker size. Barefoot shoes can run a little short, so if you are between sizes or have wider feet, going up half a size is the common call. Women and men are sized separately, so use the Women or Men buttons at the top to land on the right fit.
What are the Boulder made of, and what are they best for?
The upper is air mesh with microfiber overlays, lined with canvas. Underneath is a wear resistant anti slip rubber outsole. They are made for everyday casual wear, walking, light outdoor use and travel.
What does a zero drop sole feel like?
Your heel and your toes sit on the same level, the way they do when you stand barefoot. Nothing tips you forward, so your foot lands the way it would on its own and the sole bends with it. The toe box is wide, round, widened toe cap, so your toes have room to spread instead of being squeezed together.
Do the Boulder need breaking in?
Most people wear them comfortably from the first day. If you are coming out of cushioned shoes, ease in over a week or two. Start with a few hours, walk in them, and build up from there while your feet get used to moving on their own again.
How do I clean the Boulder?
Wipe them down with a damp cloth and mild soap, then let them air dry away from direct heat. Keep them out of the washing machine and the dryer.
Are the women's and men's Boulder different?
Same shoe and the same build. They are sized on their own lasts so the proportions suit each foot, so switch between the Women and Men buttons at the top and pick your size from that range.
What if the Boulder are not right for me?
Wear them for 30 days. If they are not for you, send them back for a full refund. Shipping is free and there is a 30 day money back guarantee.
