Vivobarefoot Primus Trail Trainers combine a thin, flexible sole with a breathable mesh upper to deliver a barefoot-feel shoe built for firm-ground trail running, hiking and outdoor exploration. Key attributes: Gray | Grey | Mesh | Breathable upper | Thin, flexible sole for natural foot movement | Firm-ground grip with multi-directional traction | Quick-lace system with toggles for fast, secure adjustments | Sock-like ankle cuff to keep out trail debris | Lightweight construction for extended activity | Hexagonal lug outsole pattern | Hexagonal brand logo | 'PRIMUS TRAIL FIRM GROUND' side text | Red accent on outsole | Composition & care: Mesh upper | Synthetic overlays | Rubber outsole | Textile ankle cuff | Synthetic laces