The Primus Trail Flow is a lightweight, high-performance barefoot trail runner built for moving naturally across varied terrain. With a breathable recycled mesh upper and a grippy, low-profile outsole, it delivers strong ground feel while keeping you agile and connected. Designed for responsive movement, it’s ideal for trail runs, hikes, and off-road exploration.
As you connect with the trail, a super lightweight and flexible ETPU midsole and an All Terrain outsole keeps feeling in and trail debris out. The Primus Trail Flow’s streamlined 1.8mm base and optimised 3.5mm lug height mean you pick up every nuance of the Earth beneath your feet, letting you run off-road with precision and confidence.
Wearing Vivos for 6 months increases foot strength by 60%
FEATURES
Trail Flow All Terrain outsole is a lightweight grip for fast, all-terrain adventures.
No insole, bringing you even closer to the ground for a greater barefoot experience.
Breathable, lightweight and comfortable mesh.
VEGAN*
Foot-shaped fit enables toes to splay, improving balance and providing a stable base of support.
Feel for natural sensory feedback as the thin sole allows the thousands of nerve endings in each foot to provide the brain with the feedback it needs to move with skill.
Flex for natural movement. The Flexible footwear allows the muscles and tendons to load and recoil, helping your feet get stronger for a natural spring in every step.
*The main materials in all Vivo's Vegan* products are synthetic and aren’t derived from animals. Vivo don’t (yet) have the transparency they need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst Vivo believe the shoes are vegan, they’re not yet able to guarantee it and want to be fully transparent.
SPECS
Base: 1.8mm
Lug Height: 3.5mm
Terrain: Multi Terrain
Insole: None
Materials: Recycled mesh upper + synthetic ETPU midsole + synthetic/rubber-like All Terrain outsole. The manufacturer describes the shoe as vegan, but notes that it cannot guarantee the vegan status of every small component such as adhesives and dyes
