Primus Trail Knit FG Womens - Graphite/Gum

Key Benefits

• Features breathable knit upper.

• Includes Firm Ground outsole.

• Uses recycled Ortholite insole.

• Delivers grip and ground feel.

Primus Trail Knit FG Womens evolves the original Primus Trail FG with a knit upper that supports breathability and natural trail mobility. The sock-like construction helps keep out trail debris while maintaining a close and flexible fit. The low-profile design supports trail running, fastpacking, and hiking, and suits varied outdoor conditions.

The Firm Ground outsole stands firm on multiple terrains and balances grip with a close-to-ground feel. The tough, non-marking rubber compound supports sticky grip and high abrasion resistance when conditions demand it. Inside, the Ortholite Performance Insole uses 98% recycled polyurethane foam, which helps reduce waste and limits the use of virgin plastics. The foot-shaped fit allows toes to splay, which supports balance and a stable base of support.

The thin sole supports sensory feedback, which helps coordination and agility during movement. The flexible construction lets muscles and tendons load and recoil, which supports strength and natural movement over time. The main materials follow a Vegan* approach and do not come from animals, with clear transparency around smaller components such as adhesives and dyes. The design keeps the focus on grip, mobility, and a barefoot feel across firm and mixed terrain.

Vivobarefoot shoes combine ancient wisdom with modern science and technology to enhance natural movement. Unlike regular shoes with thick soles, narrow toe boxes, and shoe hills, Vivobarefoot shoes allow your feet to feel every sensation, providing maximum mobility and freedom. The brand claims their design can improve foot strength by 60% in just six months. With increased flexibility, your muscles, ligaments, and tendons become more mobile, while enhanced sensory feedback helps you move with greater ease and balance. Crafted for better performance, Vivobarefoot shoes allows your feet to move as nature intended.

Founded in 2012 by Galahad and Asher Clark, seventh-generation cobblers, Vivobarefoot redefines footwear with minimalist designs that reconnect you to the ground beneath your feet. Built for men, women, and kids, their barefoot shoes feature ultra-thin, puncture-resistant soles that let your feet move naturally—just as they’re meant to. As a B Corporation™ Certified brand, Vivobarefoot goes beyond footwear, driving genuine social and environmental impact, creating products that support your wellbeing and help protect the planet.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

MATERIALS:

Upper: Vamp Knit (81% RPET, 10% Nylon Hotmelt, 9% Elastane), Overlay No-sew TPU (80% Polyurethane, 20% Resin)

Lining: Lining Microfibre (40% Polyester, 60% Polyurethane)

Hardware: Toggle Polycarbonate, Lace End TPU

Laces: 100% RPET

Insole

Blind Insole (100% RPET), Turned Insole Backer (100% RPET), Removeable Ortholite Insole

Outsole: Firm Ground Outsole (60% Polymer, 30% Silica, 10% Vulcanised Chemical)

Fits true to size.

Cleaning: Brush off mud and clean with a dry cloth.

Drying: Remove insole and dry at room temperature. Keep out of direct sunlight and avoid intense heat source.