100 day trial available

Primus Trail SG Mens

€135 €95

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.

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This shoe fits true to size

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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

Weight : 174g

Primus Trail SG Mens DNA

Breathable Mesh
Breathable Mesh

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


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

Recycled PET
Recycled PET

Recycle PET. Repurposing plastic waste by giving it a second life in our shoes and keeping it from entering landfill and our oceans.

Removeable PerFormance Insole
Performance Insole

3mm performance insole. Take it out to feel the ground. Leave it in for a little extra warmth.

Soft Ground Sticky Rubber Outsole
Soft Ground Sticky Rubber Outsole

Sticky Rubber outsole with aggressive lug design, customised to avoid clogging, with tooth like side lugs for traction. Made for soft, wet and muddy surfaces. Not suitable for the city... or the faint hearted.


Produced using animal free products and processes.

Water Resistant
Water Resistant

Pretty damn close to waterproof.

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.



Smelly and unconfortable

Out of the box it had a very strong chemical smell that filled the whole house. I kept them next to an open window and did not touch them for a month until the smell kind of went away.
This glove like fit is very secure, especially in the ankle area that I find too wide in Vivo shoes. But it is hard to put these shoes on as the socks crumple. As they have no inner lining I would not use them without socks. The shoelaces are there mostly for decorative reasons.
For runs around 30 minutes I had no issues with them, but after that the left one creates two pressure points on my feet. These are painful. After an hour of easy running it rubbed the skin so much that it started bleeding.
I cannot imagine training in these on a regular basis and running races in them. I would not recommend these shoes at all.

Positive first experience of barefoot shoes

These were my first barefoot shoes and they really helped me to correct my running form. I normally use size 45 shoes but these shoes in size 45 were bit too narrow for me. Have to say lately I have tried few shoe models were size 45 was too small for me. So maybe my feet have gotten bigger, even thou growing at age 28 sounds bit weird. Overall good first experience.

A bit narrow for my widee feet

Bought these for running in the snow and otherwise wet environment. Will return, because they are a bit too narrow for me (I have very wide and high feet), so the relatively hard edge eats into my ankle, while being tight across the top of the feet.
The shoe is also mich stiffer than non-goretex.
The grip in the soft ground is marvellous however.

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