







Vivobarefoot Men's Primus Trail Flow Mid II
Description
Meet our lightest trail boot yet, built for agility, speed, and precision on the trail and updated for increased durability. At just 268.5g, a low-profile outsole supports natural movement, while the lug pattern delivers reliable grip. A polyester ripstop and knit upper offer flexibility, reinforced by a TPU midfoot overlay, high breathable collar, and quick-lace system for secure, easy wear.
Fastpack with feeling
The lighter the load, the clearer the mind
Product Info

Trail Flow All Terrain outsole
Lightweight grip for fast, all-terrain adventures.

No Insole
No insole, bringing you even closer to the ground for a greater barefoot experience.

Vegan
This product has been registered with The Vegan Society. This means we've checked with our value chain partners and can guarantee the manufacturing process and all materials, including adhesives and dyes, meet vegan best practice standards.

WEIGHT
Based on a single shoe in Men's size: EU 42 | UK 8 | US 9
268.5g
Size & Fit
This Vivo fits true to size.
MATERIALS & TRANSPARENCY
UPPER
Upper textile: 95% RPET, 5% Spandex. Upper TPU overlay: 48% Recycled TPU, 42% TPU, 10% PU
LINING
Mesh: 100% RPET
FASTENING
Easy toggle fastening, Elastic Lace: 30% RPET, 70% Rubber Elastane. Toggle: 100% Nylon
OUTSOLE
Natural rubber 23%, Synthetic rubber 36%, Silica filler 26%, Additive 15%
INSOLE
No insole
MADE IN VIETNAM
Care
Cleaning
Clean with a slightly damp, soapy cloth.
Drying
Dry at room temperature. Keep out of direct sunlight and avoid intense heat source.
Aftercare
With wear, your shoes may loose some water resistent quality that is applied to the textile of the shoes. Vivobarefoot Repel: Protector can be used to replenish the water repellent qualities.
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 |
Style: 309621-01
