The La Sportiva Mountain Running Shoe Low Cut is a revolutionary product for the ultra-trail world from La Sportiva. The new XFLow foam has been designed for maximum cushioning and energy return – mile after mile. Every detail has been carefully considered to meet the needs of the most demanding ultrarunners: the large toe cap and breathable upper provide comfort even after hours of running. The Wrapping System construction and perfect heel ergonomics ensure stability and protection, while the rocker geometry supports a smooth and progressive stride on any terrain. Weight: 270 g (1/2 pair). XFlow midsole, supercritical foam with exceptional cushioning properties and springy energy return. Rolling and stability are enhanced by the Progressive Rocker and the wide footbed. The Wrapping System construction securely wraps and fixes the foot, preventing it from slipping inside the shoe. The upper made of breathable mesh allows for quick drying and protects the foot from overheating. Frixion XT Red Vegan Ortholite Blue.