DEMO Vivobarefoot Primus Trail Knit FG - Men's Forest Green 43. It features a knit upper for enhanced breathability and purer trail mobility made with recycled materials and a sock-like construction to keep out trail debris. Specifications for Vivobarefoot Primus Trail Knit FG Trailrunning Shoes - Men's: Manufacturer: Vivobarefoot Men's Shoe Width: Regular Activity: Hiking Gender: Male Footwear Closure: Laces Weight: 400 g Fabric/Material: Recycled Materials Age Group: Adults Footwear Upper Fabric/Material: Recycled Polyester Mesh Insole Material: Removable PU Foam Outsole Material: Rubber Lining Material: 40percent Polyester 60percent Polyacrylic Footwear Type: Shoes Features of Vivobarefoot Primus Trail Knit FG Trailrunning Shoes - Men's Stand firm on multiple terrains. The Active Ortholite Performance Insole is made of 98percent recycled PU foam which helps reduce waste and the use of virgin plastics. Strong non-marking rubber compound for sticky grip and high-abrasion when you need it most. Package Contents: Vivobarefoot Primus Trail Knit FG Trailrunning Shoes - Men's Vivobarefoot 309099-1543: Primus Trail Knit FG - Men's Forest Green 43