VIVOBAREFOOT™
Vivobarefoot Primus Trail 3.5 FG Womens Insignia Blue/Gum
Vivobarefoot Primus Trail 3.5 FG Womens Insignia Blue/Gum
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ONE STEP CLOSER TO CIRCULARITY
Lightweight trail runner engineered for off-road performance and sustainability. The Primus Trail 3.5 FG features a firm ground outsole for secure footing across varied terrain, breathable mesh construction, and an Active Ortholite insole made from 98% recycled PU foam. At just 281g per shoe, it delivers the minimal, connected feel Vivobarefoot is known for while reducing environmental impact. Rewild your run.
Trail runner built for off-road exploration with minimal environmental impact. The Primus Trail 3.5 FG combines lightweight flexibility with rugged durability across rocky terrain. Constructed from recycled, vegan materials—76% recycled polyester in the upper—it represents a significant step toward fully circular footwear. Natural fit, responsive ground feel, and mechanically recyclable design make this an expert choice for runners committed to both performance and sustainability.
Welcome back the wild.
Human beings aren’t separate to nature, we are nature. When we listen to it's rhythm and connect to its intelligence, we thrive. It's time to get outside and rewild.
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