Vivobarefoot Primus Trail Knit FG Men’s – Obsidian
Conquer off-road terrain with the Vivobarefoot Primus Trail Knit FG in Obsidian. Built for trail runners and nature explorers, these barefoot shoes provide a perfect blend of durability, breathability, and grip—while keeping your feet in their natural state.
Key Features
- Firm Ground Outsole: Ideal for rocky paths, forest trails, and uneven surfaces
- Flexible Knit Upper: Made with sustainable materials for a snug, sock-like fit
- Wide Toe Box: Encourages natural toe spread for improved balance and stability
- Zero Drop Sole: Maintains proper posture and natural movement
- Minimalist Design: Enhances sensory feedback and foot strength
Designed For the Trail
The Primus Trail Knit FG Men’s is a go-to for adventurers who value foot freedom and environmental sustainability. Its grippy outsole and lightweight feel make it ideal for fast-paced hikes, trail runs, or everyday outdoor wear.
Best For
- Trail running and hiking
- Outdoor adventures in rugged environments
- Eco-conscious explorers
Care Instructions
Spot clean with a damp cloth. Air dry away from direct sunlight. Do not machine wash.
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 Trail Knit FG Men’s – Obsidian
Conquer off-road terrain with the Vivobarefoot Primus Trail Knit FG in Obsidian. Built for trail runners and nature explorers, these barefoot shoes provide a perfect blend of durability, breathability, and grip—while keeping your feet in their natural state.
Key Features
- Firm Ground Outsole: Ideal for rocky paths, forest trails, and uneven surfaces
- Flexible Knit Upper: Made with sustainable materials for a snug, sock-like fit
- Wide Toe Box: Encourages natural toe spread for improved balance and stability
- Zero Drop Sole: Maintains proper posture and natural movement
- Minimalist Design: Enhances sensory feedback and foot strength
Designed For the Trail
The Primus Trail Knit FG Men’s is a go-to for adventurers who value foot freedom and environmental sustainability. Its grippy outsole and lightweight feel make it ideal for fast-paced hikes, trail runs, or everyday outdoor wear.
Best For
- Trail running and hiking
- Outdoor adventures in rugged environments
- Eco-conscious explorers
Care Instructions
Spot clean with a damp cloth. Air dry away from direct sunlight. Do not machine wash.
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.
