100 day trial available

Primus Trail Swimrun Womens


Wear your sustainability statement with the Primus Trail Swimrun. Using approximately 17 recycled plastic bottles to create a breathable mesh, paired with quick-drain zones to minimise water-weight. Quick-draining mesh minimizes water weight and low-profile lugs offer off road traction for all your amphibious adventures.

1. Select Colour: Black/Orange
2. Select US 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.


The Swimrun collection was developed in collaboration with ÖtillÖ, founders of the Swimrun World Championship. Seamlessly transition between wet and dry while keeping out grit and silt -- perfect for swimruns or any extra-sloppy trail runs.

  • Breathable Mesh – to keep feet cool
  • Water Resistant – splash proof, not drench proof
  • Quick Drain Zones – faster dry time
  • Firm Ground Sole – 3mm lugs for multi-terrain traction
  • Mountain Lace with Toggle – quick-secure, non-slip adherence
  • Removable Thermal Insole – 4-season protection

Weight : 500g

Primus Trail Swimrun 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.

Eco Rubber
Eco Rubber

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

Recycled PET
Recycled PET


Strange Fit

I'm a die hard Vivobarefoot fan. But these just didn't work for me. I don't like the sock-like upper. Too stiff and hard to get on after 2 years of ease slipping in and out of my Ultras. Also, they seem to fit a little too big even though I ordered the same size.

A lot stiffer than I expected

This is my first pair of barefoot shoes, though I’ve been a minimal shoe wearer for a long time. I teach yoga for a living and am barefoot most of the day. Even at home, I walk barefoot through the yard. I’m actually quite surprised by how stiff these shoes are! I wish they had a tongue, to make them easier to get on and off. And the leather across the toe makes my big toe hurt when I’m wearing them with socks. If I don’t wear socks, the part under the laces bunches and digs into my foot (I have narrow feet, so probably lace them tighter than most). I do love the wide toe box though! And the colors are great. I really want to love these and got the 100 day trial, so I’m giving them a real try. But so far I’m not impressed.

Great product after second wear

Lot of room in the toe box, quiet flexible for a running/walking shoes with good traction. The first time wearing this new pair required patient and adjustments since collar binding is tight around the heel, and I got a big blister on each side of my heel after 4.0 miles hike.

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