Vivobarefoot Primus Lite IV All‑Weather Men’s Obsidian
Introducing the Vivobarefoot Primus Lite IV All‑Weather in Obsidian—a barefoot trainer engineered for unpredictable conditions. Waterproof, versatile, and purely minimalist.
Unmatched All‑Weather Performance
- Waterproof Barrier: High-spec membrane seals out rain & snow, perfect for wet weather training.
- Barefoot Feel: Bare 4 mm thin sole with a wide, foot-shaped toe box for ground connection.
- Durable & Lightweight: Fewer materials, responsible build—just 280 g (per shoe, UK 9).
- Eco Materials: Upper made from recycled plastics; fully vinyl- and vegan-free.
Built for Functional Fitness & Movement
- Active and grippy outsole—solid traction on wet, urban, and trail surfaces.
- Removable 3mm insole for versatile cushioning preferences.
- Lightweight breathable upper—manages moisture and heat even in wet conditions.
Fit & Sizing Guidance
Foot-shaped design encourages natural toe splay. If between sizes, size up for added comfort without heel slippage.
Care & Maintenance
Wipe clean with damp cloth and mild soap. Avoid machine washing; air dry only.
Why the Primus Lite IV?
The perfect fusion of barefoot freedom and weather resistance—committed to natural movement, durability, and planet-safe materials. Stay agile, grounded, and prepared for any weather.
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 Lite IV All‑Weather Men’s Obsidian
Introducing the Vivobarefoot Primus Lite IV All‑Weather in Obsidian—a barefoot trainer engineered for unpredictable conditions. Waterproof, versatile, and purely minimalist.
Unmatched All‑Weather Performance
- Waterproof Barrier: High-spec membrane seals out rain & snow, perfect for wet weather training.
- Barefoot Feel: Bare 4 mm thin sole with a wide, foot-shaped toe box for ground connection.
- Durable & Lightweight: Fewer materials, responsible build—just 280 g (per shoe, UK 9).
- Eco Materials: Upper made from recycled plastics; fully vinyl- and vegan-free.
Built for Functional Fitness & Movement
- Active and grippy outsole—solid traction on wet, urban, and trail surfaces.
- Removable 3mm insole for versatile cushioning preferences.
- Lightweight breathable upper—manages moisture and heat even in wet conditions.
Fit & Sizing Guidance
Foot-shaped design encourages natural toe splay. If between sizes, size up for added comfort without heel slippage.
Care & Maintenance
Wipe clean with damp cloth and mild soap. Avoid machine washing; air dry only.
Why the Primus Lite IV?
The perfect fusion of barefoot freedom and weather resistance—committed to natural movement, durability, and planet-safe materials. Stay agile, grounded, and prepared for any weather.
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.
