The Inov-8 Road-X-Treme 198 is a running shoe for the enthusiast looking for an aggressive, natural racer. The synthetic upper with TPU gives you a strong and sturdy feel, while also being flexible. A mesh lining gives your feet breathing room, and an injected EVA midsole provides shock protection. The Road-X-Treme sticky fusion compound gives you a firm grip on any surface. Wt. 6.0 oz.