




Vivobarefoot Primus Flow Men’s Dark Shadow
The Vivobarefoot Primus Flow Men’s Dark Shadow is engineered for runners and active movers seeking a natural barefoot experience. Featuring a sleek design, breathable materials, and a flexible sole, this shoe supports unrestricted movement while protecting your feet.
Key Features
- Breathable Knit Upper: Lightweight and moisture-wicking for enhanced airflow and comfort.
- 4mm Active Outsole: Thin, flexible sole for superior ground feel and natural foot biomechanics.
- Wide Toe Box: Allows toes to spread naturally for balance and stability.
- Zero Drop Design: Promotes proper posture and foot alignment.
- Eco-Friendly Materials: Crafted with recycled and plant-based components to reduce environmental impact.
Performance & Fit
True to size with a snug, sock-like fit, the Primus Flow is ideal for running, training, or casual wear. Its flexible design encourages natural movement and helps strengthen foot muscles.
Care Instructions
- Hand wash with mild detergent and cold water.
- Air dry away from direct heat and sunlight.
- Avoid machine washing and tumble drying.
Why Choose Vivobarefoot Primus Flow?
The Primus Flow Men’s Dark Shadow blends performance, comfort, and sustainability—empowering you to move naturally in style and confidence.
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 Dark Shadow
The Vivobarefoot Primus Flow Men’s Dark Shadow is engineered for runners and active movers seeking a natural barefoot experience. Featuring a sleek design, breathable materials, and a flexible sole, this shoe supports unrestricted movement while protecting your feet.
Key Features
- Breathable Knit Upper: Lightweight and moisture-wicking for enhanced airflow and comfort.
- 4mm Active Outsole: Thin, flexible sole for superior ground feel and natural foot biomechanics.
- Wide Toe Box: Allows toes to spread naturally for balance and stability.
- Zero Drop Design: Promotes proper posture and foot alignment.
- Eco-Friendly Materials: Crafted with recycled and plant-based components to reduce environmental impact.
Performance & Fit
True to size with a snug, sock-like fit, the Primus Flow is ideal for running, training, or casual wear. Its flexible design encourages natural movement and helps strengthen foot muscles.
Care Instructions
- Hand wash with mild detergent and cold water.
- Air dry away from direct heat and sunlight.
- Avoid machine washing and tumble drying.
Why Choose Vivobarefoot Primus Flow?
The Primus Flow Men’s Dark Shadow blends performance, comfort, and sustainability—empowering you to move naturally in style and confidence.
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.