Vivobarefoot RA IV Men – Obsidian
The Vivobarefoot RA IV Men in Obsidian delivers a barefoot running experience with lightweight construction and flexible design. Engineered for natural foot movement, these shoes offer protection without compromising ground feel.
Key Features
- Lightweight and flexible sole: Enables natural biomechanics and enhanced foot strength
- Breathable upper: Keeps feet cool and dry during runs
- Vegan-friendly materials: Made with sustainable, animal-free components
- Minimal cushioning: Provides protection while maintaining barefoot feel
- Durable construction: Suitable for road and trail running
Ideal For
- Barefoot and minimalist running enthusiasts
- Daily training and casual wear
- Runners seeking improved foot mobility and strength
Sizing and Fit
Available in EU sizes 40–48. True to size with a spacious toe box for natural toe splay.
Care Instructions
- Clean with a damp cloth
- Air dry away from direct heat and sunlight
- Do not machine wash or tumble dry
Why Choose the RA IV
The RA IV combines barefoot freedom with durability and comfort, ideal for runners who want natural movement without sacrificing protection.
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 RA IV Men – Obsidian
The Vivobarefoot RA IV Men in Obsidian delivers a barefoot running experience with lightweight construction and flexible design. Engineered for natural foot movement, these shoes offer protection without compromising ground feel.
Key Features
- Lightweight and flexible sole: Enables natural biomechanics and enhanced foot strength
- Breathable upper: Keeps feet cool and dry during runs
- Vegan-friendly materials: Made with sustainable, animal-free components
- Minimal cushioning: Provides protection while maintaining barefoot feel
- Durable construction: Suitable for road and trail running
Ideal For
- Barefoot and minimalist running enthusiasts
- Daily training and casual wear
- Runners seeking improved foot mobility and strength
Sizing and Fit
Available in EU sizes 40–48. True to size with a spacious toe box for natural toe splay.
Care Instructions
- Clean with a damp cloth
- Air dry away from direct heat and sunlight
- Do not machine wash or tumble dry
Why Choose the RA IV
The RA IV combines barefoot freedom with durability and comfort, ideal for runners who want natural movement without sacrificing protection.
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.
