100 day trial available

Primus Swimrun Boot SG Womens


Wear your sustainability statement with the Primus Swimrun Hi. Using recycled plastic bottles to create a breathable mesh, paired with quick-drain zones to minimise water-weight. The over-ankle, neoprene collar keeps the foot firmly in place, whilst the extra-sticky Soft Ground sole features high-profile lugs for loose and muddy terrains.

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

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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.


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 triathalons or any extra-sloppy trail runs.

  • Foot-Shaped Construction – for unrestricted foot freedom
  • Neoprene Ankle Sock – full ankle mobility in and out of water
  • Water Repellent Recycled PET Mesh – for minimal wet weight
  • Quick Drain Zones – pump water out with each foot stride
  • Sticky Soft Ground Sole with Tall Lugs – for traction in mud
  • Orange Rubber – for visibility in the water

Weight : 197g

Primus Swimrun Boot SG Womens 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.


Produced using animal free products and processes.


Glad for the eco-friendly material use!

Wish there was a 9.5 in this shoe as it is a tiny bit snug for my taste, although others may be OK with their toes at the very end of the shoe.

Have needed to wear socks with these as the ankle area rubbed the back of my ankle raw when I attempted to initially wear them without socks, but they are perfectly comfortable with socks also.

Good ankle support, although wishing it was a little bit more rigid at times. So glad that they are recycling bottles to make these and makes me feel a little better about having to buy new shoes!

Love these!

I absolutely love these! I like the high top version of this to protect my ankles when I go hiking. They fit well, however, they are a bit narrow. Since wearing minimalist shoes, perhaps my feet have gotten wider. If I wanted to add a thermal insole plus thicker socks for a long hike, it'll be a bit snug. But this is better than any other shoe out there.

Almost perfect

Excellent fit, wonderful cuff that keeps debris out on hikes. Two small areas of friction caused issues on a long hike - one at the seam under the cuff that is under the lace clip creating extra friction, the other at the achilles tendon on the inside of the shoe. Hopefully these areas will soften up with use. Until then will need to tape and/or wear socks to prevent friction wounds.

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