First time buying, tried it a few times, great service. Also able to exchange sizes, thank you 🙏 Fits perfectly now
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第一次購買 試了幾次 好好服務
還可以換尺寸 感謝🙏 現在合適
309578-03-M42
Millions of years of evolution have done an amazing job. The human foot is perfectly designed for standing, walking, and running.
Remarkably, feet come in all sorts of shapes and sizes. Some have been compromised by a lifetime in conventional shoes, some naturally wider and some thinner and longer. We’re confident you’ll find a pair of Vivos to suit you.

Make sure you measure your feet standing up, not sitting down, and we recommend you do this later in the day, as feet tend to expand from when we first wake up.

Place a piece of paper larger than your foot against the wall. Ensure that the wall is flat, and if there is any skirting, it is also flat.

Stand on the paper with your heel against the wall. Ensure that the floor is hard and that the paper does not slide under any gap between the floor and the wall/skirting.

Mark the paper where your longest toe reaches with the pencil. Remember to not tuck the pencil under the toe as you want an accurate maximum measurement.

Measure the distance from the end of the paper to the toe line with a ruler or tape measure.

Repeat with your other foot, they might be different – trust us on this one! – and then use the longest measurement.

Use our conversion tables below to work out your recommended fit.
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 21.2 - 22.1 | 35 | 2.5 | 4.5 |
| 22.2 - 22.8 | 36 | 3 | 5 |
| 22.9 - 23.5 | 37 | 4 | 6 |
| 23.6 - 24.1 | 38 | 5 | 7 |
| 24.2 - 24.8 | 39 | 6 | 8 |
| 24.9 - 25.4 | 40 | 7 | 9 |
| 25.5 - 26.1 | 41 | 8 | 10 |
| 26.2 - 26.8 | 42 | 8.5 | 10.5 |
| 26.9 - 27.4 | 43 | 9 | 11 |
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 24.6 - 25.5 | 40 | 6 | 7 |
| 25.6 - 26.2 | 41 | 7 | 8 |
| 26.3 - 26.9 | 42 | 8 | 9 |
| 27.0 - 27.5 | 43 | 9 | 10 |
| 27.6 - 28.2 | 44 | 10 | 11 |
| 28.3 - 28.9 | 45 | 11 | 12 |
| 29.0 - 29.6 | 46 | 11.5 | 12.5 |
| 29.7 - 30.3 | 47 | 12 | 13 |
| 30.4 - 30.9 | 48 | 13 | 14 |
| 31.0 - 31.6 | 49 | 14 | 15 |
| 31.7 - 32.3 | 50 | 15 | 16 |
| 32.4 - 33.0 | 51 | 16 | 17 |
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 9.4 - 10.2 | 18 | 2 | 3 |
| 10.3 - 10.9 | 19 | 3 | 4 |
| 11.0 - 11.6 | 20 | 4 | 5 |
| 11.7 - 12.3 | 21 | 4.5 | 5.5 |
| 12.4 - 13.0 | 22 | 5 | 6 |
| 13.1 - 13.6 | 23 | 6 | 7 |
| 13.7 - 14.3 | 24 | 7 | 8 |
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 14.4 - 14.9 | 25 | 8 | 9 |
| 15.0 - 15.6 | 26 | 8.5 | 9.5 |
| 15.7 - 16.3 | 27 | 9 | 10 |
| 16.4 - 17.0 | 28 | 10 | 11 |
| 17.1 - 17.6 | 29 | 11 | 11.5 |
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 17.7 - 18.3 | 30 | 11.5 | 12 |
| 18.4 - 19.0 | 31 | 12 | 13 |
| 19.1 - 19.6 | 32 | 13 | 1 |
| 19.7 - 20.2 | 33 | 1 | 2 |
| 20.3 - 20.9 | 34 | 2 | 3 |
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 21.0 - 21.7 | 35 | 3 | 4 |
| 21.8 - 22.4 | 36 | 3.5 | 4.5 |
| 22.5 - 23.1 | 37 | 4.5 | 5.5 |
| 23.2 - 23.8 | 38 | 5 | 6 |
| 23.9 - 24.4 | 39 | 6 | 7 |
Measuring your feet will help tell us what your recommended fit is. However, some like a shorter, snug fit while others prefer a longer, more spacious fit. This is where personal choice comes in.
It’s also important to note there will be slight variations in size from one style to another. Please check the product page to check if a style runs large, small or true to size.

This shows how a shoe would fit snug. It’s still a correct fit, but with less space around and at the front of the toebox.

This is the shape of the recommended fit of Vivos. Remember, it might not be your preferred fit.

If you prefer a roomier fit or think you have wider-than-average feet, you might consider going a size up.
Coconut / US 9 EU 42
Complete your setup
The Primus Flow is the newest member of the Primus family, designed for pinnacle barefoot running performance. Built for efficient and unrestricted natural movement, this ultra-lightweight runner – our lightest ever – weighs in at just 150g. Its lightweight, breathable upper made from engineered recycled mesh forgoes overlays in favour of a stripped-back, seamless construction.

Embrace your human nature

No insole, bringing you even closer to the ground for the full barefoot experience.

Breathable, lightweight and comfortable.

*The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent.

Based on a single shoe in Men's size: EU 42 | UK 8 | US 9
100% recycled polyester jacquard
Unlined
100% recycled polyester
Midsole: ETPU (4mm), Outsole: 100% TPU (2mm)
Brush off mud and clean with a damp cloth.
Remove insole and dry at room temperature. Keep out of direct sunlight and avoid putting on a radiator.
Once you can’t repair or don't need them anymore, send us your old Vivos and we’ll make they sure they’re given a second life, or if they’re really well-loved, we'll store them until we launch our recycling solution.

For natural stability, natural sensory feedback and natural strength.

The new Primus Flow outsole is a super lightweight 150g, crafted for speed and agility on runs. It delivers flexibility and grip, empowering stronger feet through a purposeful design that keeps you connected to the ground for more mindful running.

Shoes that put fashion before fitness and money before wellness? The unnatural isn't working. It's time to get back to basics and let nature heal us.
★ 4.9 · 1341 reviews on Google
Write a review★★★★★
First time buying, tried it a few times, great service. Also able to exchange sizes, thank you 🙏 Fits perfectly now
第一次購買 試了幾次 好好服務
還可以換尺寸 感謝🙏 現在合適
★★★★★
Great communication! Reasonably priced items and great selection! Highly recommended!!
★★★★★
Really love it ,very nice colour
★★★★★
Delivery is fast and is well packed!
★★★★★
Best sock i have ever ran with for a long run, thank you for the fast and smooth delivery
★★★★★
Good product
★★★★★
Very nice seller.
★★★★★
Smooth international purchase experiences
Payment was simple
Genuine product with accurate, international standard shoe size
Fast international shipment with tracking available
Very well recommend
★★★★★
Essential for long-distance endurance courses
耐力長距離課必備
★★★★★
High cost performance
性價比高
★★★★★
Swift delivery and promising products with very good quality
★★★★★
Great product and good price. Delivered quickly with excellent communication from the store. Recommended 👌🏼
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