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.

The Primus Lite 3.5 is a versatile performance trainer for running, cross-training, and dynamic day-to-day living that reclaims your natural potential. It’s wide for natural stability, thin for natural feedback, and flexible for natural movement.
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 Lite 3.5 upper takes us from 43% to 81% polyester, of which 94% 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 Lite 3.5 is a versatile performance trainer for running, cross-training, and dynamic day-to-day living that reclaims your natural potential. It’s wide for natural stability, thin for natural feedback, and flexible for natural movement.
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 Lite 3.5 upper takes us from 43% to 81% polyester, of which 94% 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.

Feel your workout to the full via the 2mm outsole of the Primus Lite Knit Natural, designed for enhanced barefoot performance and durability. With a 59% Tencel, 24% Woolmark Wool upper, and an Active Ortholite Performance Insole made of 98% recycled PU foam taking strides towards our shared sustainability goals, there’s even more to love about one of our beloved barefoot styles.

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 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.

The Primus Trail Knit is an evolution of the Primus Trail FG: our original, best-selling trail-running sneaker.   It features a knit upper for enhanced breathability and purer trail mobility, made with recycled materials, and a sock-like construction to keep out trail debris.

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.

The Primus Trail Knit is an evolution of the Primus Trail FG: our original, best-selling trail-running sneaker.

It features a knit upper for enhanced breathability and purer trail mobility, made with recycled materials, and a sock-like construction to keep out trail debris.

For trail runners, ramblers and kindred spirits