These are Adidas Duramo 10 running shoes. They feature a lightweight mesh upper and a full-length Lightmotion midsole for high-response cushioning. Model Name: Duramo 10 Color: Black Material: High-performance recycled material containing 50% recycled material in the upper Features: Lightweight and comfortable to wear I have been using these indoors. The soles are also perfect. The area around the holes for the laces, closest to the ankle, is melted from friction on both the left and right shoes. This is unavoidable and happens with wear. Please understand that these are used items. Main color: Black