The Primus Lite III is the most versatile training Vivo, made for moving naturally and growing strong through wide-ranging training disciplines. It’s perfect for experienced barefoot cross-trainers and those new to barefoot performance. Primus Outsole: Get as close to the ground as possible The Active Ortholite Performance Insole is made of 98% 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 Vegan Weight: 6.4 oz | 182 g (Per shoe) Fits true to size Upper: Vamp, Quarter, Tongue (100% RPET) Overlays (40% Polyester, 60% Polyeurathane) Lining: Collar and Tongue Lining (60% RPET, 40% Polyeurathene Microfiber) Laces: 100% RPET Outsole: 100% Synthetic Rubber Made in Vietnam