Primus 3.5 FG Running Shoe – Men's

Built for runners who want real ground feel on technical terrain, the Primus Trail 3.5 FG is our pick for athletes transitioning to or training in barefoot footwear. A firm-ground outsole with aggressive lugs delivers traction on dirt, roots, and rock, while the wide toe box lets your foot splay and work naturally.

• Zero-drop, minimal stack height puts you in direct contact with the trail for honest proprioceptive feedback
• Firm-ground (FG) outsole with multidirectional lugs grips loose dirt, wet roots, and uneven terrain across Southern trails
• Wide anatomical toe box allows natural toe splay — critical for foot strength and long-term biomechanical health
• Lightweight mesh upper breathes well in heat and humidity without sacrificing structure on technical ground
• Available in Mineral colorway — a low-profile, trail-ready look that doesn't show dirt