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Vivobarefoot Primus Trail Flow trail shoes are lightweight, flexible barefoot shoes for trail running and fast-paced adventures over mixed terrain. The breathable upper in 100% recycled mesh keeps your feet cool, while the thin sole with 3.5 mm lugs delivers both grip and ground feel. An ultra-light midsole protects against sharp rocks without dulling the connection to the trail. With Primus Trail Flow on your feet, you’re ready for everything from fast forest paths to technical and varied terrain.
To choose the right size, do this : Measure your foot. Place your heel against a wall and measure to the longest toe. This is your foot size. Add 0.8-1.5 cm to this measurement to know which size to choose. Keep in mind that when you exercise in the shoes, your feet get warm and swell a little, so choose closer to 1 cm extra, or slightly more. Check the size chart below (we have checked the sole here at Widetoes).
Size/Inner measurement:
- 36: 23,5 cm
- 37: 24,3 cm
- 38: 25 cm
- 39: 26 cm
- 40: 26,5 cm
- 41: 27 cm
- 42: 28 cm
- 43: 28,5 cm
Materials:
- Upper: 100% recycled polyester mesh with TPU overlays. The overlays consist of 48% recycled thermoplastic polyurethane (rTPU), 42% TPU and 10% polyurethane (PU).
- Lining: Collar: 100% recycled polyester (rPET), tongue lining: 80% rPET, 20% PU
- Insole: No insole – the shoe is designed for maximum ground feel and a barefoot experience
- Outsole: Trail Flow All Terrain outsole with a 1.8 mm base and 3.5 mm lugs. The outsole is made from a blend of synthetic rubber, nitrile rubber, natural rubber (latex), fillers and vulcanizing agents. The midsole is made from 100% E-TPU.
What we like about this shoe:
- Lightweight, agile trail model built for running and fast adventures over varied terrain
- Trail Flow All Terrain outsole with 1.8 mm base and 3.5 mm lugs for the ideal balance of grip and ground contact
- Ultra-light and flexible E-TPU midsole that helps block out sharp rocks while preserving ground feel
- Breathable upper in 100% recycled mesh that keeps the foot cool and dries quickly
- Vegan-friendly construction where the main materials are synthetic and free from animal leather
Care instructions:
- Clean with a lightly damp cloth and mild soapy water when needed.
- Let the shoes dry at room temperature, away from direct sunlight and strong heat.
Weight approx. 189 g per shoe in women’s size EU 38. The shoe is designed for multi-terrain use – from wet and dry, rocky and hard-packed forest trails to more urban environments – and is part of Vivobarefoot’s barefoot philosophy, focusing on natural stability, sensory feedback and foot strength. Made in Vietnam.
About Widetoes:
Widetoes helps you find shoes that are both comfortable and stylish. We specialise in wide shoes, foot-shaped shoes, barefoot shoes and minimalist shoes for the whole family. Our goal is to bring together one of Europe’s best selections of foot-shaped shoes in one place and make it easy to find models that give your toes the space they need and let your feet move naturally.
Widetoes: Shoes shaped like your feet, not the other way around.
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With us, you'll find barefoot shoes and foot-shaped footwear with a spacious toe box. Every model we sell is shaped according to the foot’s natural anatomy, helping reduce discomfort and supporting long-term foot health. This is our specialty and something we never compromise on.
Our selection includes popular brands such as Be Lenka, Vivobarefoot, Xero Shoes, Groundies, Barebarics, Birkenstock, Viba, Reima, Altra and Froddo – all chosen to give your toes plenty of room.
We ship quickly across Europe from our warehouses in Pietarsaari and southern Sweden. Widetoes was founded by physiotherapist Lina Björkskog, whose dedication to foot health shapes our philosophy: wide, foot-shaped shoes that benefit the body. In Pietarsaari, you can also visit our physical store.
We look forward to helping you find shoes that both you and your feet will love!
Do you need help? Send us an email.
Contact
Questions about an existing order: orders@widetoes.com
Changes to your existing order:
+358 40 716 8803
Company number (Finnish): 3324484-5
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