Vivobarefoot Primus Flow Men’s – Bright White/Neon Orange
The Primus Flow is the pinnacle of barefoot running performance—an ultra-light barefoot trainer in Bright White/Neon Orange, weighing just 150 g. Crafted with engineered recycled mesh and a seamless, overlay-free design, it’s Vivobarefoot’s lightest ever shoe, built for unrestricted, natural movement.:
Key Features
- Feather-Light at 150 g – Makes it Vivobarefoot’s lightest running shoe, ideal for speed, agility, and responsive movement.
- Engineered Recycled Mesh Upper – Breathable and streamlined, with a stripped-back design that sacrifices nothing but weight.
- 0 mm Heel-to-Toe Drop – Supports a natural running posture and ground feedback.
- Pinnacle Barefoot Feel – Engineered for mindful running, letting you feel more ground with every stride.
Best For…
- Barefoot running veterans who seek speed, agility, and maximal ground connection.
- Gym sessions focused on strength or hybrid workouts—where stability and responsiveness are key.
- Warm-weather runners who prioritise breathability and lightweight cushioning.
Considerations Before Buying
This model features a narrower cut compared to broader barefoot models. If your feet are wide or you’re new to barefoot running, consider sizing up or opting for a more cushioned barefoot trainer.
Vivobarefoot Men’s Size Chart
Ensure your Vivobarefoot shoes fit just right. Our guide includes accurate size conversions (cm, EU, UK, US), the “rule of thumb” for toe-splay, and easy 365-day returns.
Men’s Footwear Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 26.2 | 40 | 6 | 7 |
| 26.9 | 41 | 7 | 8 |
| 27.6 | 42 | 8 | 9 |
| 28.2 | 43 | 9 | 10 |
| 28.9 | 44 | 10 | 11 |
| 29.5 | 45 | 11 | 12 |
| 30.2 | 46 | 11.5 | 12.5 |
| 30.9 | 47 | 12 | 13 |
| 31.5 | 48 | 13 | 14 |
| 32.2 | 49 | 14 | 15 |
The Rule of Thumb
Vivobarefoot deliberately fits larger—your toes need room to splay naturally. If you can fit your thumb between your longest toe and the shoe’s front, you're likely wearing the right size. Over time, as toes spread, you may need to move up a size.
How to Measure Your Feet
- Stand on a hard surface with your heel against a wall.
- Mark the tip of your longest toe and measure to the wall in cm.
- Use the measurement above to choose the corresponding EU/UK/US size.
- Measure both feet and use the longer measurement.
Sizing Tips & Returns
- Vivobarefoot shoes run larger than traditional footwear—don’t worry, this supports natural toe splay.
- If you’re between sizes, we recommend sizing up for comfort rather than over-tight fit.
- Changed your mind? Return unused shoes within 365 days for a full refund or store credit—no questions asked.
Vivobarefoot Primus Flow Men’s – Bright White/Neon Orange
The Primus Flow is the pinnacle of barefoot running performance—an ultra-light barefoot trainer in Bright White/Neon Orange, weighing just 150 g. Crafted with engineered recycled mesh and a seamless, overlay-free design, it’s Vivobarefoot’s lightest ever shoe, built for unrestricted, natural movement.:
Key Features
- Feather-Light at 150 g – Makes it Vivobarefoot’s lightest running shoe, ideal for speed, agility, and responsive movement.
- Engineered Recycled Mesh Upper – Breathable and streamlined, with a stripped-back design that sacrifices nothing but weight.
- 0 mm Heel-to-Toe Drop – Supports a natural running posture and ground feedback.
- Pinnacle Barefoot Feel – Engineered for mindful running, letting you feel more ground with every stride.
Best For…
- Barefoot running veterans who seek speed, agility, and maximal ground connection.
- Gym sessions focused on strength or hybrid workouts—where stability and responsiveness are key.
- Warm-weather runners who prioritise breathability and lightweight cushioning.
Considerations Before Buying
This model features a narrower cut compared to broader barefoot models. If your feet are wide or you’re new to barefoot running, consider sizing up or opting for a more cushioned barefoot trainer.
Vivobarefoot Men’s Size Chart
Ensure your Vivobarefoot shoes fit just right. Our guide includes accurate size conversions (cm, EU, UK, US), the “rule of thumb” for toe-splay, and easy 365-day returns.
Men’s Footwear Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 26.2 | 40 | 6 | 7 |
| 26.9 | 41 | 7 | 8 |
| 27.6 | 42 | 8 | 9 |
| 28.2 | 43 | 9 | 10 |
| 28.9 | 44 | 10 | 11 |
| 29.5 | 45 | 11 | 12 |
| 30.2 | 46 | 11.5 | 12.5 |
| 30.9 | 47 | 12 | 13 |
| 31.5 | 48 | 13 | 14 |
| 32.2 | 49 | 14 | 15 |
The Rule of Thumb
Vivobarefoot deliberately fits larger—your toes need room to splay naturally. If you can fit your thumb between your longest toe and the shoe’s front, you're likely wearing the right size. Over time, as toes spread, you may need to move up a size.
How to Measure Your Feet
- Stand on a hard surface with your heel against a wall.
- Mark the tip of your longest toe and measure to the wall in cm.
- Use the measurement above to choose the corresponding EU/UK/US size.
- Measure both feet and use the longer measurement.
Sizing Tips & Returns
- Vivobarefoot shoes run larger than traditional footwear—don’t worry, this supports natural toe splay.
- If you’re between sizes, we recommend sizing up for comfort rather than over-tight fit.
- Changed your mind? Return unused shoes within 365 days for a full refund or store credit—no questions asked.
10,000+ Reasons to Give Us a Try
At Adventureco, we stand behind every product we sell. That’s why you’re covered by our 365-Day Return Policy — with free returns within Australia.
Not the right fit? Changed your mind? No worries. Return your gear in unused condition within 365 days for a full refund or store credit — no fuss, no pressure.
Trusted for 9+ years and over 10,000 orders delivered. Shop with confidence, the adventure is guaranteed.
