Vivobarefoot Primus Lite IV is a lightweight, barefoot-inspired trainer designed for everyday training and urban wear. It combines a breathable mesh upper with a thin, flexible sole to promote natural movement and ground feedback. Key attributes: White | Grey | Mesh (polyester) | Breathable | Lightweight | Flexible sole for natural movement | Good grip and traction on varied surfaces | Responsive ground feedback | Lace-up fastening for a customised fit | Padded, contoured heel counter | Ortholite-style cushioned insole | Breathable mesh upper with synthetic overlays | Perforated medial panel | Low-profile, minimalist silhouette | Hexagonal tread pattern on outsole | Dimensions & fit: True to size | Wide, foot-shaped fit for natural toe splay | 2 mm tread depth (thin, barefoot-style sole) | Composition & care: Upper: 100% Polyester | Lining: 57% TPU, 35% Polyester, 8% Polyurethane | Fastening: Laces, 100% Polyester | Outsole: 60% Polymer, 30% Silica, 10% Vulcanised chemical | Insole: 98% Polyurethane, 2% Water-based adhesive; Topper: 100% Polyester | Brush off mud and clean with a dry cloth. Remove insole and dry at room temperature; keep out of direct sunlight and avoid intense heat. Clean with mild soap and water and air-dry away from direct heat. Avoid prolonged exposure to water, salt, and harsh chemicals.