Vivobarefoot Primus Trail Knit FG Women’s – Obsidian
Move naturally on every trail with the Vivobarefoot Primus Trail Knit FG Women’s in Obsidian. Designed for off-road exploration, this barefoot trail shoe delivers grip, flexibility, and breathability in a sleek, low-profile design.
Key Features
- Firm Ground Outsole (FG): Ideal for trails, rocky paths, and natural surfaces
- Knit Sock Fit Collar: Provides a snug, secure fit with excellent ankle flexibility
- Lightweight & Breathable Mesh: Keeps feet cool and dry on long adventures
- Wide Toe Box: Allows toes to splay naturally for improved balance and comfort
- Zero Drop Sole: Encourages natural posture and foot mechanics
Perfect For
Trail running, hiking, fastpacking, and everyday wear. Whether you're tackling steep climbs or forest trails, these shoes are designed to support your foot’s natural movement in rugged environments.
Sustainably Built
Made with recycled and vegan-friendly materials, the Primus Trail Knit FG reflects Vivobarefoot’s commitment to sustainability and performance.
Care Instructions
Clean with a damp cloth or sponge. Avoid machine washing. Air dry in a shaded area away from direct heat.
Vivobarefoot Women’s Size Chart
Ensure the perfect fit with your Vivobarefoot shoes. Our guide provides accurate size conversions (cm, EU, UK, US), the “rule of thumb” toe-room tip, and flexible 365-day returns.
Women’s Footwear Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 22.8 | 35 | 3 | 5.5 |
| 23.5 | 36 | 3.5 | 6 |
| 24.2 | 37 | 4 | 7 |
| 24.9 | 38 | 5 | 7.5 |
| 25.5 | 39 | 6 | 8 |
| 26.1 | 40 | 7 | 9 |
| 26.9 | 41 | 8 | 10 |
| 27.5 | 42 | 8.5 | 11 |
| 28.2 | 43 | 9 | 11.5 |
The "Rule of Thumb" Fit Tip
Vivobarefoot intentionally fits larger to give your toes room to wiggle—especially important for natural movement. If you can comfortably fit your thumb between your longest toe and the shoe’s front, you’ve likely found the right size. Over time, as your toes naturally splay, you may need to go up a size.
How to Measure Your Feet
- Stand with your heel against a wall on a hard surface and measure from wall to tip of your longest toe in centimeters.
- Use the “cm” column above to determine your size.
- Measure both feet and base your choice on the larger measurement.
- Measure at the end of the day when your feet are slightly larger.
Sizing Advice & Return Policy
- Vivobarefoot fits liberally—don’t size down to compensate. A bit more room means better barefoot feel.
- If you're between sizes or plan to wear thick socks, consider sizing up for lasting comfort.
- Not completely sure? You have a full 365 days to return unused shoes for a refund or store credit—stress-free returns.
Vivobarefoot Primus Trail Knit FG Women’s – Obsidian
Move naturally on every trail with the Vivobarefoot Primus Trail Knit FG Women’s in Obsidian. Designed for off-road exploration, this barefoot trail shoe delivers grip, flexibility, and breathability in a sleek, low-profile design.
Key Features
- Firm Ground Outsole (FG): Ideal for trails, rocky paths, and natural surfaces
- Knit Sock Fit Collar: Provides a snug, secure fit with excellent ankle flexibility
- Lightweight & Breathable Mesh: Keeps feet cool and dry on long adventures
- Wide Toe Box: Allows toes to splay naturally for improved balance and comfort
- Zero Drop Sole: Encourages natural posture and foot mechanics
Perfect For
Trail running, hiking, fastpacking, and everyday wear. Whether you're tackling steep climbs or forest trails, these shoes are designed to support your foot’s natural movement in rugged environments.
Sustainably Built
Made with recycled and vegan-friendly materials, the Primus Trail Knit FG reflects Vivobarefoot’s commitment to sustainability and performance.
Care Instructions
Clean with a damp cloth or sponge. Avoid machine washing. Air dry in a shaded area away from direct heat.
Vivobarefoot Women’s Size Chart
Ensure the perfect fit with your Vivobarefoot shoes. Our guide provides accurate size conversions (cm, EU, UK, US), the “rule of thumb” toe-room tip, and flexible 365-day returns.
Women’s Footwear Size Guide
| Foot Length (cm) | EU | UK | US |
|---|---|---|---|
| 22.8 | 35 | 3 | 5.5 |
| 23.5 | 36 | 3.5 | 6 |
| 24.2 | 37 | 4 | 7 |
| 24.9 | 38 | 5 | 7.5 |
| 25.5 | 39 | 6 | 8 |
| 26.1 | 40 | 7 | 9 |
| 26.9 | 41 | 8 | 10 |
| 27.5 | 42 | 8.5 | 11 |
| 28.2 | 43 | 9 | 11.5 |
The "Rule of Thumb" Fit Tip
Vivobarefoot intentionally fits larger to give your toes room to wiggle—especially important for natural movement. If you can comfortably fit your thumb between your longest toe and the shoe’s front, you’ve likely found the right size. Over time, as your toes naturally splay, you may need to go up a size.
How to Measure Your Feet
- Stand with your heel against a wall on a hard surface and measure from wall to tip of your longest toe in centimeters.
- Use the “cm” column above to determine your size.
- Measure both feet and base your choice on the larger measurement.
- Measure at the end of the day when your feet are slightly larger.
Sizing Advice & Return Policy
- Vivobarefoot fits liberally—don’t size down to compensate. A bit more room means better barefoot feel.
- If you're between sizes or plan to wear thick socks, consider sizing up for lasting comfort.
- Not completely sure? You have a full 365 days to return unused shoes for a refund or store credit—stress-free returns.
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.
