Montrail - Diez Vista (Grey/Tangerine) - Men's: The Diez Vista 50km is a difficult, competitive race that demands precise footwork to run it fast. It is rooty, rocky, often muddy, and steep. This shoe is perfect for such conditions. The IntegraRide platform gives a low-to-the-ground ride that is smooth and stable and able to handle tight downhill corners, sidehills, and steep climbs. A very smooth transition from heel strike to toe-off combined with excellent forefoot flexibility, gives the shoe a road shoe-like feel. As such, it is nice for training on roads, or for using roads to get to the real terrain. The Diez Vista has a blucher-style lacing system, allowing the upper to expand and contract widely in the forefoot to accommodate a range of foot widths. The midfoot portion of the upper is reinforced with synthetic leather underneath the mesh for secure foot support. Finally, the midsole is medially posted and has a high-density rim around the heel to create a very stable platform for mild to heavy pronators. Ultra-supportive wrap design provides extra motion control. IntegraRide I technology maximizes support, flexibility and traction with minimal weight. Blucher-toe lacing system allows more volume adjustment in forefoot. Multiple-density midsole controls pronation, add stability, and cushions for a fine-tuned ride. FasTrax carbon rubber outsole. Shoe weighs 12 oz.