The Primus Lite III is our 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. ORTHOLITE INSOLE The Active Ortholite Performance Insole is made of 98% recycled PU foam, which helps reduce waste and the use of virgin plastics. TOUGH RUBBER COMPOUND Strong, non-marking rubber compound for sticky grip and high-abrasion when you need it most. VEGAN* *The main materials in all our Vegan* products are synthetic and aren&';t derived from animals. We don&';t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we&';re not yet able to guarantee it and want to be fully transparent. WEIGHT Based on a single shoe in Women&';s size: EU 38 | UK 5 | US 7.5 MATERIALS & TRANSPARENCY UPPER Vamp, Quarter, Tongue (100% RPET) Overlays (40% Polyester, 60% Polyeurathane) lining Collar and Tongue Lining (60% RPET, 40% Polyeurathene Microfibre) Laces 100% RPET outsole 100% Synthetic Rubber