Lightweight and soft, the adidas Performance Duramo RC 2 Running Trainers are perfect for your daily miles. Featuring a rubber outsole and textile lining, these trainers come with shoelaces for a secure fit. Upper: Textile Outsole: Rubber. Regular fit. Lace closure. Textile upper. Textile lining. Weight: 209.0 grams (size UK 5.5). Midsole drop: 5 mm (heel 26 mm / forefoot 21 mm). Rubber outsole.