Vivobarefoot Primus Trail III All Weather FG is a lightweight, water‑resistant trail trainer designed for hardpack trail running and fast hiking. It combines a thin, flexible sole with a firm‑ground outsole and puncture protection for secure grip on varied terrain. Key attributes: Black | Black White | Non-wicking textile | Water resistant construction | Firm Ground outsole with 3 mm base and 2.5 mm lugs for multi‑terrain grip | Pro5 puncture-resistant sole layer | Thin, flexible sole for ground feedback | Removable Ortholite performance insole | Replaceable laces and insoles | Toggle closure for fast on/off | Foot-shaped, wide toe box for natural stability | No-sew TPU overlay | Textured arch for zonal grip | Quick-lace toggle system | Dimensions & fit: Weight: 220 g (based on a single shoe, Women's EU 38) | Fits true to size | Wide, thin and flexible, foot-shaped construction for natural toe splay and mobility | Composition & care: Upper (vamp): Non-wicking textile (95% RPET, 5% Spandex) | Overlay: No-sew TPU (80% Polyurethane, 20% Resin) | Lining 1: 100% Polyester | Lining 2: Microfiber (40% RPET, 60% Polyurethane) | Hardware: Toggle Polycarbonate; Lace end TPU | Laces: 100% RPET | Insole: Blind insole (100% RPET); Turned insole backer (100% RPET); Removable Ortholite insole | Outsole: Firm Ground Outsole (60% Polymer, 30% Silica, 10% Vulcanised chemical) | Brush off mud and clean with a damp cloth. Remove insole and dry at room temperature; keep out of direct sunlight and avoid placing on a radiator. Use a water-repellent protector to replenish water resistance if needed. Laces and insoles can be replaced.