100 day trial available

Primus Trail SG Womens


Primus Trail SG is an unswerving favourite with our team of off-road competitive athletes. Designed for picking up the pace when hitting the trails, the high-profile lugs give superior grip on muddy and loose ground. This water-wicking barefoot shoe is quick draining and breathable, with a lightweight stretchy ankle collar for unrestrained mobility whilst keeping out any little nasties kicked up on the trail. If you’re splashing through rivers and navigating tricky terrains, Primus SG is the shoe for you.

1. Select Colour: Black/Red
2. Select UK Size:
3. Optional Extras:

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

This shoe fits true to size

Order before 14.30 Mon - Thurs for UK Next Day Delivery

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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.


Primus SG is geared for technical off-road trails. We’ve focused on providing a quick-dry design with superior grip, whilst honouring the concept ‘less is more’. Less shoe, less weight = more freedom to move.

  • Neoprene Ankle Sock – keeps little nasties out whilst maintaining mobility
  • Breathable Mesh – to help feet stay cool
  • Quick Drain Zones – to optimize dry time when wet
  • Soft Ground Sole – for traction on wet and muddy terrain
  • Mountain Lace with Toggle – for quick-secure, non-slip adherence

Weight : 200g

Primus Trail SG Womens 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.

Removeable Insole
Performance Insole

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

Breathable Mesh
Breathable Mesh

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


Heat fused together for lightweight structure and stich-less durability.

Tough Rubber Compound
Tough Rubber Compound

Strong, non-marking rubber compound for sticky grip and high-abrasion when you need it most.

Eco Rubber
Eco Rubber

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


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.


Really impressed

Well I’m not an off road competitive athlete, I’m an overweight, wandering along dog walker. I don’t ‘hit the trail’ I buy a bar of chocolate and hope I don’t get diabetes before Monday. However, these have been great straight out of the box, wearing with no socks and not coming home with dusty icky feet. Much much better to wear than my normal walking shoes.

Tested in Yorkshire

Worn over the weekend in Yorkshire, with hiking and swimming in a waterfall. Very happy with a sole grip, going down the hills was not a problem for me, was equally happy going through some slippery rocks on the way to the waterfall.

However I'd like to note - quick drain is not the same as quick dry. I imagine it might've been okay if I'd just stepped in water and moved to a dry surface, but I ended up walking through deep water. Although it did drain quickly, but it took forever to dry completely. I couldn't take them off and dry in the sun, but still, would be hoping for them to feel dry by the end of the day (they didn't).
Overall - great for walking and perhaps occasional water splashes.

Saved me on a rainy-day boat ride

Happened to have these on when an impromptu ride on a fisherman's boat got scheduled—in the rain—and they were PERFECT! I was the only one besides the captain not slip-sliding around on the deck and stairs.

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