Size Guide :
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Description
xThe Primus Flow is the newest member of the Primus family, designed for pinnacle barefoot running performance. Built for efficient and unrestricted natural movement, this ultra-lightweight runner – our lightest ever – weighs in at just 150g. Its lightweight, breathable upper made from engineered recycled mesh forgoes overlays in favour of a stripped-back, seamless construction.
Mindfulness in motion
Embrace mindful running and full-body connection
Product Info
PRIMUS FLOW OUTSOLE
Embrace your human nature
NO INSOLE
No insole, bringing you even closer to the ground for the full barefoot experience.
BREATHABLE MESH
Breathable, lightweight and comfortable.
VEGAN*
*The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we 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 we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent.
WEIGHT
Based on a single shoe in Men's size: EU 42 | UK 8 | US 9
159g
MATERIALS & TRANSPARENCY
UPPER
100% recycled polyester jacquard
LINING
Unlined
LACES
100% recycled polyester
OUTSOLE
Midsole: ETPU (4mm), Outsole: 100% TPU (2mm)
MADE IN VIETNAM
Care
Cleaning
Brush off mud and clean with a damp cloth.
Drying
Remove insole and dry at room temperature. Keep out of direct sunlight and avoid putting on a radiator.
End of life
Once you can’t repair or don't need them anymore, send us your old Vivos and we’ll make they sure they’re given a second life, or if they’re really well-loved, we'll store them until we launch our recycling solution.
Run the way nature intended
Engineered to connect you with the ground and engage every muscle
The Primus Flow features an innovative 4mm midsole made entirely from low-density ETPU that’s designed to reduce the risk of injury without sacrificing proprioception. However, remember that barefoot running is a journey, not a race. To prevent injury, take it slow – learn how to stand, walk and squat barefoot first before attempting to run.
Fit, Feel, Flex
For natural stability, natural sensory feedback and natural strength.
PRIMUS FLOW OUTSOLE
The new Primus Flow outsole is a super lightweight 150g, crafted for speed and agility on runs. It delivers flexibility and grip, empowering stronger feet through a purposeful design that keeps you connected to the ground for more mindful running.
Sole base
1.4mm
Tread Depth
0.6mm
The ultimate barefoot experience.
Shoes that put fashion before fitness and money before wellness? The unnatural isn't working. It's time to get back to basics and let nature heal us.
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