Primus Knit II Juniors

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Nature is all feet need to grow. The Primus Knit II is a barefoot kids' trainer that helps active children move just how they're meant to.
Grow up barefoot

Super-naturally lightweight kids' sneakers

Product Info


Grip meets flexibility for kids who are finding their balance.


No insole, bringing you even closer to the ground for the full barefoot experience.


Tabs on the heels make it easy to pull these Vivos on, and can be used to hang a damp pair to air dry without deforming them


Based on an individual shoe (Mens Size 7)


Based on a single shoe in Junior's size: EU 35 | UK 3 | US 4


Size & Fit

This Vivo fits true to size. 

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Delivery Info


5-8 WORKING DAYS Tracked service with Global-e

*Place your order by December 13th for guaranteed arrival before Christmas with standard shipping.


3-5 WORKING DAYS From Dispatch Tracked service with Global-e

*Place your order by December 17th for guaranteed arrival before Christmas with express shipping.

We don't offer delivery to PO boxes.

All orders placed outside the UK and EU will be subject to duties and taxes that depend on the destination of the parcel. Customers might have an option to prepay their taxes or pay them once they receive their order. Option to prepay taxes and duties will display at checkout for selected countries.

Please note that timeframes could be subject to short notice changes if a country’s situation changes.

100-Day Trial

We're confident that after experiencing the joys of natural foot freedom, your feet won't want to go back to 'normal' shoes.


So confident, we've introduced a 100 day trial to all orders. If you change your mind within that period, we're happy for you to return your shoes for a full refund with no hassle.


Your trial will commence automatically from the date your order arrives. Simply check out with your shoes as usual and we'll take care of the rest. (Standard Ts and Cs apply).



Wild Hide, Knit: 7% Hotmelt Yarn 62% Polyester Yarn 31% Wool, Knit Overlay: 34% Wool 57% Recycled Polyester Yarn 9% Spandex


Microfibre Lining (40% RPET, 60% Polyurethane)


100% Organic Cotton


Blind Insole (100% Organic Cotton)


Outsole (60% Polymer, 30% Silica, 10% Vulcanized chemical)




Brush off mud and clean with a damp cloth


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. We recommend using Renapur Leather Balsam to nourish the leather, restore the colour and finish and help prevent the leather from drying out and cracking. It's ideal to treat new footwear as it helps relax the new leather and make your footwear waterproof.


Shop Care Range

Repair Options

Insoles can be replaced.

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.


Send us your Vivos

Hero Lifestyle
Unleash their potential

Built for bundles of energy

The Primus Knit II is for chargers, chasers, runners and jumpers who don't sit still for long. A durable but lightweight trainer, engineered from premium natural materials (WoolmarkTM wool and Wild Hide leather) for a snug but breathable fit that gives total barefoot freedom and encourages natural movement.
Multi TerrainMulti Terrain


Stripped-back soles for barefoot living — so you're never too far from nature, even in the city.

Fit Feel FlexFit Feel Flex

Fit, Feel, Flex

For natural stability, natural sensory feedback and natural strength.

Image Media
Image Media


  • Sock construction of the WoolmarkTM wool upper for a super snug, flexible fit that keeps feet cool in the heat, and warms them up when its cold (wool is amazing like that!).
  • Wide, thin and flexible in classic Primus style for all the barefoot feeling and freedom of movement growing feet need to grow strong, flexible and (naturally) healthy.
More Information
Is UntrackedNo
Water Resistance2
Vivo Product Listing DescriptionSuper-naturally lightweight kids' sneakers
Vivo feature 2 suedeNo
Vivo feature bio based materialsNo
Vivo feature bloomNo
Vivo feature city outsoleNo
Vivo feature eco canvasNo
Vivo feature eco rubberNo
Vivo feature eco suedeNo
Vivo feature faux shearlingNo
Vivo feature handcutNo
Vivo feature hemp canvas upperNo
Vivo feature hex flex outsoleNo
Vivo feature hi viz reflectiveNo
Vivo feature kids multi outsoleNo
Vivo feature leather upperNo
Vivo feature organic cottonNo
Vivo feature pittards wild hideNo
Vivo feature pro5 tmNo
Vivo feature recycled leatherNo
Vivo feature recycled petNo
Vivo feature removable cork insoleNo
Vivo feature removable thermal soleNo
Vivo feature soft ground soleNo
Vivo feature soul of africaNo
Vivo feature tpu compoundNo
Vivo feature tough rubberNo
Vivo feature veg tan leatherNo
Vivo feature veganNo
Vivo feature warm linedNo
Vivo feature weather tight canvasNo
Vivo feature winterproofNo
Vivo feature wp leatherNo
Vivo Feature Made In countryMADE IN VIETNAM
Vivo Feature Material & Transparency

Wild Hide, Knit: 7% Hotmelt Yarn 62% Polyester Yarn 31% Wool, Knit Overlay: 34% Wool 57% Recycled Polyester Yarn 9% Spandex


Microfibre Lining (40% RPET, 60% Polyurethane)


100% Organic Cotton


Blind Insole (100% Organic Cotton)


Outsole (60% Polymer, 30% Silica, 10% Vulcanized chemical)

Mini CaptionGrow up barefoot
Vivo Feature Material - Wildhide LeatherYes
Vivo Feature Material - WoolmarkYes
Vivo Feature Multi TerrainNo
Vivo Feature Why BarefootYes
Vivo Feature WeightNo
Vivo Feature Weight MensNo
Vivo Feature Weight WomensNo
Vivo Feature Weight JuniorsYes
Vivo Feature Weight KidsNo
Vivo Feature Weight ToddlersNo
Vivo Feature Thermal InsoleNo
Vivo feature firm ground outsoleNo
Vivo feature breathable meshNo
Vivo feature waterproofNo
Vivo feature leather footbedNo
Vivo feature water resistantNo