Vivobarefoot Primus Trail Flow is a minimalist trail trainer that delivers a barefoot feel and precise ground feedback for off‑road runs and active outdoor use. Key attributes: Brown | Choco | Mesh | Ultra-thin, flexible sole for natural foot movement | Multi-directional lug pattern for traction on uneven surfaces | Breathable upper for ventilation | Heel pull tab for easy on/off | Traditional lacing for adjustable fit | Durable protective overlays for trail use | Breathable mesh upper with subtle tonal pattern | Dark burgundy collar trim and heel pull tab | Teal laces threaded through lime eyelets | Bright lime hexagon logo on lateral side | Protective toe and midfoot overlays | Dimensions & fit: Sole base: 1.8 mm | Lug height: 3.5 mm | Minimalist / barefoot fit — low stack height for enhanced ground feedback and natural foot movement. | Composition & care: Brush off excess dirt and spot clean with a damp cloth. Air dry away from direct heat. Avoid tumble drying and prolonged machine washing.