100 day trial available

Primus Trail SG Mens


Wear your sustainability statement with the Primus Trail SG, ready to hit the trails with high-profile lugs for superior grip on muddy and loose terrain. Using recycled plastic bottles to construct a quick-draining and breathable shoe, featuring a lightweight stretchy ankle collar for unrestrained mobility whilst keeping out grit.

1. Select Colour: Olive
2. Select EU Size:
3. Optional Extras:

A selection of laces, insoles and apparel to pair with your Vivo's

This shoe fits true to size

Select size to show stock
100 day trial for barefoot beginners

We're confident that after 100 days of au natural foot freedom (you need to give them a proper outing) your feet will love being feet. So we're happy to give you a no-quibbles test run for 100 days.

All major credit cards accepted.


An unswerving favourite with our team of off-road competitive athletes, Primus SG is geared for technical off-road trails. We’ve focused on providing a quick-dry design with superior grip. Keep your footing and fly over the slipperiest, mushiest trails.

  • Neoprene Ankle Sock – full ankle mobility in and out of water
  • Breathable Recycled PET Mesh – to keep feet cool
  • Water Resistant – splash proof, not drench proof
  • Quick Drain Zones – faster dry time
  • Soft Ground Sole – traction on wet and muddy terrain
  • Mountain Lace with Toggle – for quick-secure, non-slip adherence

Primus Trail SG Mens DNA


Patented, ultra-thin, puncture resistant layer. 5x more puncture resistant than a standard sole of the same thickness.


Produced using animal free products and processes.

Water Resistant
Water Resistant

Pretty damn close to waterproof.

Breathable Mesh
Breathable Mesh

Synthetic multi-ply materials, to deliver optimum lightweight breathability and comfort.

Eco Rubber
Eco Rubber

A no-sew material, made from recycled tyres, with high abrasion resistance where you need it most.

A light and lean barefoot running shoe, designed for technical off-road trails.

Our new soft ground sole gives superior grip on wet terrains. It is quick draining, for minimal wet weight, with a lightweight ankle collar for support.

Built around the concept, less is more. Less shoe, less weight – more freedom to move. We had a vision for the lightest movement shoe possible; a shoe that followed the natural shape of the foot and had the least possible interference with human movement.



Primus Trail SG

Very good product.
It fits very good on my feets

Primus Trail SG Mens, EU46, Olive

First impression is a great looking shoe. Not tested out on the trails yet, but when worn in-house, the high profile lugs didn't feel uncomfortable at all, I bet the grip of these shoes in muddy soft ground trails will be amazing. Can't wait to test these on a soft or loose gravel trail. Sizing was ok, toes room was as expected, roomy but not too wide or too narrow. The colour is great, I was waiting for this to come back in stock for a very long time. Two thing I have to notice though that I thought could do with improvement in future releases. When tightening the toggle, and I tried this w/ and w/o socks on, the breathable fabric on top of the tarsals (on the top of the foot in then middle) seem to lift upwards as if there was too much fabric. The second thing is the stretch ankle collar, w/o socks it seemed to leave many gaps around the ankle, it didn't seem stretch enough or it was simply larger in size that it should be. W/ socks the situation got a little bit better. Overall I think is a great off road show for soft ground trails.


I thought it would be a great shoe. If your feet are wide and the shoe in the foot its ok. But getting your feet in is terrible, and if you have a problem with swollen feet sometimes please do not even attempt to get inside. Then there is the smell of plastic. Not just a little bit, it made the whole house smell. The kids came home and said: what is this awful meat like smell and they didn't even know the much awaited shoes were in. I had to send them back. Terrible choice.

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