Vivobarefoot Primus Trail 3.5 FG Mens Obsidian(Preorder Only)

ONE STEP CLOSER TO CIRCULARITY

Hit the trail to rewild yourself and reconnect with nature. The Primus Trail 3.5 FG is a light, durable, flexible trail-running trainer that brings us one step closer to circular footwear.

Feel the earth

Tough, all-terrain trail trainers – one step closer to circularity

FIRM GROUND OUTSOLE

Stand firm on multiple terrains.

ORTHOLITE INSOLE

The Active Ortholite Performance Insole is made of 98% recycled PU foam, which helps reduce waste and the use of virgin plastics.

BREATHABLE MESH

Breathable, lightweight and comfortable.

WEIGHT

Based on a single shoe in Men's size: EU 42 | UK 8 | US 9

281g

Run and roam wild

Built for trail running and adventuring closer to nature

The Primus Trail 3.5 FG is for runners who live for the end of the road. These all-terrain trainers are light and flexible enough to move freely, and tough enough to run wild on rough, rocky ground. Made with recycled, vegan*, high-performance materials.
We're on a mission to create a fully circular shoe – a new Vivo made from an old one, which can in turn be made into another. The Primus 3.5 is a big step forward on this journey.
With an already mechanically recyclable outsole, the challenge is making an upper from 100% polyester, which can be recycled. The new Primus Trail 3.5 upper takes us from 34% to 76% polyester, of which 93% is recycled. Why not 100%? Because some parts of the upper still need extra durability that polyester can't yet provide. We’re working with our partners to figure out this final piece of the puzzle.

Fit, Feel, Flex

For natural stability, natural sensory feedback and natural strength.

FIRM GROUND OUTSOLE

The Firm Ground Outsole is made from a sticky rubber compound for maximum grip and durability. With a 3mm base and 2.5mm lug height, plus a textured arch for zonal grip (ideal for technical trail movement), this sole will keep your feet firmly planted on multiple terrains — wet to dry, concrete to rocky.

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.