The Dynablast 4 running shoe ensures that each stride will be more comfortable than the last. A must-have for any fitness fanatic, this pair is crafted with a breathable fabric upper, extra cushioning, and a durable design. TECHNOLOGY. Run Type: Everyday, Training. Pronation: Neutral. Surface Type: Road. Engineered woven upper improves breathability. FF BLASTTM technology provides lightweight cushioning and a responsive rebound. Underfoot cutouts provide excellent bounce. OrthoLiteTM X-30 sockliner provides soft step-in comfort. AHAR® outsole rubber. Weight: 225 g/7.9 oz. Want more info? Learn how to buy running shoes. Shop ASICS Running Shoes. Woven fabric upper. Lace-up closure. Round toe with bumper. Padded collar. Synthetic lining. Removable padded insole. FF BLASTTM foam midsole. AHAR® rubber sole.. Color: white