The Primus Trail Knit is an evolution of the Primus Trail FG: our original, best-selling trail-running sneaker. It features a knit upper for enhanced breathability and purer trail mobility, made with recycled materials, and a sock-like construction to keep out trail debris. Made for trail running, the Primus Trail Knit FG is also excellent for fastpacking and hiking. Its low profile and versatility also makes it a popular choice of outdoor lovers wherever they tread. A knit upper and sock bring flexibility and protection. A quick-lace system means easy adjustments. And a thin Firm Ground sole balances barefoot sensation with grip, feeling fast on varied hardpack terrain, building natural strength with every step. Firm Ground outsole Stand firm on multiple terrains. ORTHOLITE INSOLE The Ortholite Performance Insole is made of 98% recycled polyurethane foam, which helps reduce waste and the use of virgin plastics. TOUGH RUBBER COMPOUND Strong, non-marking rubber compound for sticky grip and high-abrasion when you need it most. VEGAN* *The main materials in all our Vegan* products are synthetic and aren&';t derived from animals. We don&';t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we&';re not yet able to guarantee it and want to be fully transparent. WEIGHT Based on a single shoe in Men&';s size: EU 42 | UK 8 | US 9