Features of the Merrell Women's Gridway Moc Shoe 100% Recycled knit Upper 50% Recycled removable EVA Footbed 30% Recycled EVA Midsole Recycled content made of 80% Recycled EVA + 20% Recycled PU Vibram EcoDura Outsole made with 30% Recycled post manufacture waste Vibram Ecodura is made from a minimum of 30% recycled rubber High-quality compound formulation sacrifices no Performance and durability