Mesh upper Lace up closure Sustainable insole Ethylene vinyl acetate midsole Zoned rubber outsole With An Eye On Sustainability, This Female-Oriented Running Shoe Takes Its Design Language From The Puma Forever Luxe Trainer. It Features A Recycled Mesh Upper And Boasts A Better Foam Midsole Compound That Is Good Both For Your Feet And The Planet. That’S Because It Is Created With 35% Bio-Based Sugarcane Ethylene Vinyl Acetate. What’S More, It Uses A New Sustainable Insole That Contains Recycled/Bio-Based Foam Content.