Vivobarefoot Ra IV – Men's Barefoot Dress Shoe | Obsidian
Built for looking sharp. Built for feeling wild. The Vivobarefoot Ra IV is the barefoot shoe for rulebreakers and changemakers who refuse to choose between style and natural movement. Handcrafted in Portugal from natural materials, the Ra IV pairs a sleek, lightweight leather upper with an ultra-thin sole for full ground connection — taking you seamlessly from desk to drinks, boardroom to bar.
Why You'll Love It
- Handcrafted in Portugal: Premium craftsmanship from natural materials — a dress shoe that’s built to last and built with integrity.
- Sleek lightweight leather upper: Polished enough for the office, refined enough for an evening out — effortlessly versatile smart-casual style.
- Ultra-thin barefoot sole: Stripped-back design keeps you connected to the ground for natural sensory feedback, even in the city.
- Wide toe box: Natural foot-shaped fit gives toes room to splay freely for better balance, comfort, and long-term foot health.
- Zero drop: Heel and forefoot at the same height for natural posture and reduced joint fatigue through long days on your feet.
- Flex and feel: Natural stability, natural sensory feedback, and natural strength — every step builds a more capable foot.
- Desk to drinks versatility: The one shoe that works for work, weekends, and everything in between.
Specs
- Upper: Natural leather
- Made in: Portugal
- Colour: Obsidian
- Drop: Zero drop (heel-to-toe)
- Fit: Wide toe box
- Closure: Lace-up
- Use: Work, smart-casual, everyday
- Vendor: VIVOBAREFOOT
About Vivobarefoot
Vivobarefoot was founded on the belief that the foot is perfectly designed — shoes should protect it, not restrict it. Every Vivobarefoot shoe is built with a wide toe box, zero drop, and thin flexible sole to promote stronger, healthier feet and more natural movement. The Ra IV proves that barefoot performance and premium style are not a compromise.
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's Barefoot Dress Shoe | Obsidian
Built for looking sharp. Built for feeling wild. The Vivobarefoot Ra IV is the barefoot shoe for rulebreakers and changemakers who refuse to choose between style and natural movement. Handcrafted in Portugal from natural materials, the Ra IV pairs a sleek, lightweight leather upper with an ultra-thin sole for full ground connection — taking you seamlessly from desk to drinks, boardroom to bar.
Why You'll Love It
- Handcrafted in Portugal: Premium craftsmanship from natural materials — a dress shoe that’s built to last and built with integrity.
- Sleek lightweight leather upper: Polished enough for the office, refined enough for an evening out — effortlessly versatile smart-casual style.
- Ultra-thin barefoot sole: Stripped-back design keeps you connected to the ground for natural sensory feedback, even in the city.
- Wide toe box: Natural foot-shaped fit gives toes room to splay freely for better balance, comfort, and long-term foot health.
- Zero drop: Heel and forefoot at the same height for natural posture and reduced joint fatigue through long days on your feet.
- Flex and feel: Natural stability, natural sensory feedback, and natural strength — every step builds a more capable foot.
- Desk to drinks versatility: The one shoe that works for work, weekends, and everything in between.
Specs
- Upper: Natural leather
- Made in: Portugal
- Colour: Obsidian
- Drop: Zero drop (heel-to-toe)
- Fit: Wide toe box
- Closure: Lace-up
- Use: Work, smart-casual, everyday
- Vendor: VIVOBAREFOOT
About Vivobarefoot
Vivobarefoot was founded on the belief that the foot is perfectly designed — shoes should protect it, not restrict it. Every Vivobarefoot shoe is built with a wide toe box, zero drop, and thin flexible sole to promote stronger, healthier feet and more natural movement. The Ra IV proves that barefoot performance and premium style are not a compromise.
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.
WHY GO BAREFOOT
Wearing Vivos for 6 months increases foot strength by 60%
Better Balance and Posture
Foot-shaped fit enables toes to splay supporting balance and a stable base of support.
Improved Coordination And Agility
Thin sole allows the thousands of nerve endings in each foot enabling the sensory feedback the brain needs to move with skill.
Improved Strength and Natural Movement
Flexible footwear let the muscles and tendons load and recoil, supporting stronger, more resilient feet over time.
15,000+ 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 15,000 orders delivered. Shop with confidence, the adventure is guaranteed.