Mesh and TPU upper. 100% recycled laces. Padded collar. Protective toe cap. 100% recycled mesh lining. EVA foam insole with 50% recycled top sheet. Removable PU foam insole. Rock plate for protection. Float Pro Foam midsole for a lightweight ride that lasts. New Vibram Traction Lug outsole design for added traction and stability. Vibram Eco step is 30% recycled rubber. Stack Height - 31-21mm. Drop - 10mm. Lug - 4mm.