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.
Get the Right Fit the First Time
We want to make sure you pick the perfect size when ordering online. That’s why we’ve created clear, easy-to-use size charts for every Vivobarefoot product.
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.
Our Size Guide is here to help! Vivobarefoot fit 'big' deliberately – we call this ‘the rule of thumb’. Your toes need wiggle room! This is especially important for running. If you can fit your thumb in-between the end of your toe and the front of the shoe, you’ve more than likely found your ideal size.
**After some time with Vivobarefoot shoes, your shoe size may need to increase, as your toes splay out more naturally.**
MENS FOOTWEAR SIZE GUIDE
| 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 |
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.
Get the Right Fit the First Time
We want to make sure you pick the perfect size when ordering online. That’s why we’ve created clear, easy-to-use size charts for every Vivobarefoot product.
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.
Our Size Guide is here to help! Vivobarefoot fit 'big' deliberately – we call this ‘the rule of thumb’. Your toes need wiggle room! This is especially important for running. If you can fit your thumb in-between the end of your toe and the front of the shoe, you’ve more than likely found your ideal size.
**After some time with Vivobarefoot shoes, your shoe size may need to increase, as your toes splay out more naturally.**
MENS FOOTWEAR SIZE GUIDE
| 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 |
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.
