Vivobarefoot Primus Trail is a minimalist trail trainer built for firm-ground running and fast hiking. It combines a thin, flexible sole for ground feel with protective overlays and a quick-lace system for easy on/off. Key attributes: Black | Textile | Breathable upper | Thin, flexible sole for enhanced ground feel | Firm-ground traction | Quick-lace system with toggle | Sock-like ankle collar | Heel pull-tab for easy on/off | Ortholite-style insole | Knitted/mesh upper | Subtle branding | Hexagonal lug outsole with red accents | Reinforced toe, midfoot and heel overlays | Dimensions & fit: Fits true to size | Sock-like ankle collar for a secure, irritation-free fit | Composition & care: Upper vamp: 95% Polyester, 5% Spandex | Overlay: No-sew TPU (80% Polyurethane, 20% Resin) | Lining 1: 100% Polyester | Lining 2: Microfiber (40% Polyester, 60% Polyurethane) | Laces: 100% Polyester | Hardware: Toggle (Polycarbonate); Lace end (TPU) | Insole: Ortholite polyurethane foam | Brush off mud and wipe clean with a damp cloth. Remove insole and dry at room temperature; keep out of direct sunlight and avoid heat sources. Reapply a water-repellent protector as needed.