309099-20-M42
Millions of years of evolution have done an amazing job. The human foot is perfectly designed for standing, walking, and running.
Remarkably, feet come in all sorts of shapes and sizes. Some have been compromised by a lifetime in conventional shoes, some naturally wider and some thinner and longer. We’re confident you’ll find a pair of Vivos to suit you.
Place a piece of paper larger than your foot against the wall. Ensure that the wall is flat, and if there is any skirting, it is also flat.
Stand on the paper with your heel against the wall. Ensure that the floor is hard and that the paper does not slide under any gap between the floor and the wall/skirting.
Mark the paper where your longest toe reaches with the pencil. Remember to not tuck the pencil under the toe as you want an accurate maximum measurement.
Measure the distance from the end of the paper to the toe line with a ruler or tape measure.
Repeat with your other foot, they might be different – trust us on this one! – and then use the longest measurement.
Use our conversion tables below to work out your recommended fit.
This shows how a shoe would fit snug. It’s still a correct fit, but with less space around and at the front of the toebox.
This is the shape of the recommended fit of Vivos. Remember, it might not be your preferred fit.
If you prefer a roomier fit or think you have wider-than-average feet, you might consider going a size up.
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.
Stand firm on multiple terrains.
The Active Ortholite Performance Insole is made of 98% recycled PU foam, which helps reduce waste and the use of virgin plastics.
Strong, non-marking rubber compound for sticky grip and high-abrasion when you need it most.
*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.
Based on a single shoe in Men's size: EU 42 | UK 8 | US 9
Vamp Knit (81% RPET, 10% Nylon Hotmelt, 9% Elastane), Overlay No-sew TPU (80% Polyurethane, 20% Resin)
Lining Microfibre (40% Polyester, 60% Polyurethane)
Toggle Polycarbonate, Lace End TPU
100% RPET
Blind Insole (100% RPET), Turned Insole Backer (100% RPET), Removeable Ortholite Insole
Firm Ground Outsole (60% Polymer, 30% Silica, 10% Vulcanised Chemical)
Brush off mud and clean with a damp cloth
Remove insole and dry at room tempreture. Keep out of direct sunlight and avoid putting on a radiator.
LIQUIPROOF PREMIUM PROTECTOR. With wear, your shoes may loose some water resistent quality that is applied to the textile of the shoes. This product can be used to replenish the water repellent qualities.
Laces and insoles can be replaced.
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.
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.
Giving you grip and ground feel on everything from wet and dry, rocky and firm terrain.
Stripped-back soles for barefoot living — so you're never too far from nature, even in the city.
For natural stability, natural sensory feedback and natural strength.
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.
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.
