Vivobarefoot Primus Lite IV Trainers combine a barefoot feel with breathable mesh and an ultra-thin sole for everyday training and casual wear. The design prioritises natural movement, flexibility and close-to-ground feedback. Key attributes: Black | Polyester mesh | Breathable construction | Ultra-thin sole for enhanced ground feel | Lightweight and highly flexible | Lace-up fastening for a customised fit | Soft padded collar and tongue | Ortholite performance insole | Minimalist mesh upper | Reflective accents | Hexagonal Vivobarefoot logo | Off-white ultra-thin sole with hexagonal tread pattern | Dimensions & fit: Fits true to size | Foot-shaped toebox allows toes to splay for natural movement | 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 wipe clean with a dry or damp cloth. Remove insole and air-dry at room temperature. Avoid direct heat and prolonged exposure to salt or harsh chemicals. Colour: black