VIVOBAREFOOT™
Vivobarefoot Primus Trail Flow Mid Mens Glacial Green
Vivobarefoot Primus Trail Flow Mid Mens Glacial Green
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The Lightest Barefoot Trail Boot Ever Made
Move faster, hike further, and stay connected to every step with the Vivobarefoot Primus Trail Flow Mid. Designed for fast hiking, trail running, and all-terrain adventures, this lightweight barefoot boot delivers exceptional grip, flexibility, and natural movement while weighing just (Men's EU42): 268.5 g per shoe.
Built for speed and agility, the Primus Trail Flow Mid combines a breathable ripstop and knit upper with a lightweight Trail Flow All-Terrain outsole, allowing you to move confidently across rocky trails, forest paths, mountain routes, and mixed terrain.
Why Choose the Primus Trail Flow Mid?
Traditional hiking boots often sacrifice natural movement for protection. The Primus Trail Flow Mid takes a different approach, providing lightweight protection while allowing your feet to move naturally for improved balance, stability, and trail awareness.
Key Features
- Ultra-lightweight barefoot trail boot
- Trail Flow All-Terrain outsole for superior grip
- Wide toe box for natural foot function
- Flexible construction for unrestricted movement
- Breathable ripstop and knit upper
- Quick-lace system for fast adjustment
- Reinforced TPU midfoot overlays for added durability
- Mid-cut ankle support for secure fit
- Vegan-friendly construction*
- Weight:(Men's EU42): 268.5 g per shoe
Built For Fast Hiking & Trail Running
Whether you're moving quickly through technical terrain, hiking mountain trails, or exploring off-road routes, the Primus Trail Flow Mid is engineered for responsive performance.
Natural Stability
The foot-shaped design allows your toes to spread naturally, creating a stable foundation for confident movement on uneven terrain.
Enhanced Ground Feel
The minimalist outsole keeps you connected to the trail beneath you, delivering valuable sensory feedback that improves balance, coordination, and agility.
Flexible Freedom
Unlike stiff hiking boots, the Primus Trail Flow Mid bends and flexes with your feet, encouraging natural movement and helping strengthen foot muscles over time.
Trail Flow All-Terrain Outsole
The Trail Flow All-Terrain outsole is Vivobarefoot's lightest and most agile trail sole to date.
Designed specifically for:
- Fast hiking
- Trail running
- Mountain adventures
- Mixed-terrain exploration
- Technical off-road routes
The carefully engineered lug pattern maximises grip, traction, abrasion resistance, and durability while maintaining exceptional flexibility and ground feel.
Ready For Any Terrain
From wet forest trails and muddy tracks to rocky mountain paths and hard-packed gravel roads, the Primus Trail Flow Mid provides reliable traction and confidence in changing conditions.
Performance Benefits
- Excellent grip on wet and dry surfaces
- Secure footing on loose terrain
- Lightweight comfort over long distances
- Protection from mud, rain, and trail debris
- Responsive movement on technical terrain
Breathable, Durable & Adventure Ready
The innovative upper combines lightweight polyester ripstop with flexible knit materials for exceptional comfort and durability. Reinforced TPU overlays provide additional protection in high-wear areas, while the breathable ankle construction helps keep feet comfortable during long days on the trail.
The quick-lace system allows fast, secure adjustment for a locked-in fit when conditions demand precision.
Vegan-Friendly Performance
The Primus Trail Flow Mid is made using synthetic, animal-free materials. While Vivobarefoot continues to improve transparency across all manufacturing processes, this model is designed to meet vegan-friendly standards wherever possible.
Embrace your human nature
The best piece of technology ever to be put in a shoe? The human foot. So let's set it free.
VIVOBAREFOOT SIZE GUIDE
Start with your regular size, regardless of the brand. If you are unsure what your size is, please check our guide below. If you are used to wearing regular shoes, Vivobarefoot may feel more spacious when you first start wearing them.
In the end, fit is personal but we’re here to help you on your path to barefoot freedom!
01.
FEET COME IN DIFFERENT SHAPES AND SIZES
Millions of years of evolution have done an amazing job. The human foot is perfectly designed for standing, walking, and running.
Remarkably, feet come in all sorts of shapes and sizes. Some have been compromised by a lifetime in conventional shoes, some naturally wider and some thinner and longer. We’re confident you’ll find a pair of Vivos to suit you.
02.
HOW TO MEASURE
For the most accurate fit refer to the size charts below.
WOMENS FOOTWEAR SIZE GUIDE
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 21.2 - 22.1 | 35 | 2.5 | 4.5 |
| 22.2 - 22.8 | 36 | 3 | 5 |
| 22.9 - 23.5 | 37 | 4 | 6 |
| 23.6 - 24.1 | 38 | 5 | 7 |
| 24.2 - 24.8 | 39 | 6 | 8 |
| 24.9 - 25.4 | 40 | 7 | 9 |
| 25.5 - 26.1 | 41 | 8 | 10 |
| 26.2 - 26.8 | 42 | 8.5 | 10.5 |
| 26.9 - 27.4 | 43 | 9 | 11 |
MENS FOOTWEAR SIZE GUIDE
| FOOT LENGTH (CM) | EU | UK | US |
|---|---|---|---|
| 24.6 - 25.5 | 40 | 6 | 7 |
| 25.6 - 26.2 | 41 | 7 | 8 |
| 26.3 - 26.9 | 42 | 8 | 9 |
| 27.0 - 27.5 | 43 | 9 | 10 |
| 27.6 - 28.2 | 44 | 10 | 11 |
| 28.3 - 28.9 | 45 | 11 | 12 |
| 29.0 - 29.6 | 46 | 11.5 | 12.5 |
| 29.7 - 30.3 | 47 | 12 | 13 |
| 30.4 - 30.9 | 48 | 13 | 14 |
| 31.0 - 31.6 | 49 | 14 | 15 |
| 31.7 - 32.3 | 50 | 15 | 16 |
| 32.4 - 33.0 | 51 | 16 | 17 |
04.
FITTING
Measuring your feet will help tell us what your recommended fit is. However, some like a shorter, snug fit while others prefer a longer, more spacious fit. This is where personal choice comes in.
It’s also important to note there will be slight variations in size from one style to another. Please check the product page to check if a style runs large, small or true to size.
If you are still unsure about your size, visit our store for in-store measuring,
or contact us below