The Primus Lite 3.5 is our original training all-rounder, reimagined with a new upper to get us closer to circularity. Made for moving naturally and building natural strength during runs and wide-ranging training disciplines, it’s perfect for experienced barefoot cross-trainers and those new to barefoot performance.

Feel the power of barefoot training, from CrossFit to primal movement.

Brave the elements. Feel your power. The Primus Lite All Weather is a lightweight, water-resistant men’s trainer that carries you through the seasons.

A sustainable sneaker for strength training, animal flow and light running.

The Primus Lite Knit’s flexible knit upper, made with recycled plastics, adds even more mobility and agility to the beloved Primus Lite. The same 2mm Primus outsole, with an Active Ortholite Performance Insole made of 98% recycled PU foam, makes it perfect for active lifestyles and controlled workouts.

With a sensitive 2mm Primus sole and a light, flexible knit upper for full natural mobility, the Primus Lite Knit is ideal for active lifestyle wear and low-intensity workouts with controlled motions and minimal lateral movement. It thrives at weight and strength training, calisthenics, animal flow and light road running.

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.

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.

The Primus Trail III All Weather Firm Ground is a water-resistant evolution of the Primus Trail FG: our original, best-selling trail-running sneaker.

Similarly light, durable and flexible for varied hardpack trail adventures – made with recycled, vegan*, high-performance materials – the Primus Trail III AW FG features water-resistant materials for trail runs and hikes in wetter, cooler climes.

The Primus Trail III All Weather Firm Ground is a water-resistant evolution of the Primus Trail FG: our original, best-selling trail-running sneaker.   Similarly light, durable and flexible for varied hardpack trail adventures – made with recycled, vegan*, high-performance materials – the Primus Trail III AW FG features water-resistant materials for trail runs and hikes […]

Made for trail running, the Primus Trail Knit FG is also excellent for fastpacking and hiking. Its low profile and versatility also makes it a popular choice of outdoor lovers wherever they tread.

A knit upper and sock bring flexibility and protection. A quick-lace system means easy adjustments. And a thin Firm Ground sole balances barefoot sensation with grip, feeling fast on varied hardpack terrain, building natural strength with every step.