100 day trial available

Primus Trail FG Mens


Wear your sustainability statement with the Primus Trail FG, featuring a Firm Ground sole with low-profile, chevron lugs for traction over trails and rocky terrains. Constructed for durability and robust flexibility, each pair uses recycled PET bottles to create a breathable mesh upper, ready to explore off the beaten track with natural barefoot freedom.

1. Select Colour: Indigo
2. Select US Size:

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.


Primus Trail FG is a versatile off-road shoe, designed to let you get back to nature while keeping your footing with maximum sensory feedback. Primus Trail is a highperforming shoe perfect for exploring any rural or urban habitat.

  • 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
  • Performance insole

Primus Trail FG Mens DNA

Breathable Mesh
Breathable Mesh

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

Firm Ground Sticky Rubber Outsole
Firm Ground Sticky Rubber Outsole

High abrasion, rubber outsole with low-profile, multi- directional lugs, for great traction and durability on moderately wet ground and dry, rocky surfaces.


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.


Produced using animal free products and processes.



So Far So Good

After completely wearing through both a pair of Vivobarefoot Neo Trails and Aqua 2s (which were my all-time favorite shoes, btw), I was looking for a replacement. I ordered a pair of the Swimrun Trail shoes, but when they arrived, the color of the sole seemed way more orange than they appeared on screen. I settled on the Indigo Trail FGs and though I've only had them for a little while and gone on a couple short runs, but I'm enjoying them quite a lot. The sole is firm enough that I don't have to worry about stepping on stray rocks that might bruise my feet, but also thin enough that I still naturally move with a barefoot gait. The toe box is wide, but my feet don't slide around. They feel durable.

My only reservation is that they're not as water resistant as I would like, especially for rainy Portland winters.

(Pls bring back the Aquas!)

Perfect hiking shoe

Great hiking shoe! I already have a pair of these in blue and red. My go-to shoe.

Amazing feel

Absolutely great shoe out of the box. Usually I wear a size 10 so I went with an 11 and it fits great, plenty of room for the toes. I think I will be a returning customer.

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