RAIL RUNNING SHOES FOR TECHNICAL TRAILS AND ENDURANCE RUNS. Take on alpine terrain and push your endurance in these men's trail running shoes. Featuring responsive boost(TM) cushioning for endless energy return, along with a lightweight upper, these shoes keep you flying fast over technical trails. Inspired by the "Trail King" Continental mountain bike tyre, the Continental(TM) Rubber outsole hugs the trail with a smooth transition even in wet conditions. Boost is our most responsive cushioning ever: The more energy you give, the more you get Textile and mesh upper with abrasion-resistant welding for added protection and durability EVA tongue for optimal comfort Breathable sandwich mesh lining Continental(TM) Rubber for extraordinary grip even in wet conditions Weight: 315 g (per shoe in size UK 8.5)