Stream is the next generation mid-cut fast hiking boot for fast hiking. Adopt solutions that are part of La Sportiva mountain DNA, combining them with Mountain Running technologies and concepts for a versatile, waterproof and super breathable product thanks to the new GORE-TEX SURROUND technology: an exclusive solution that allows total breathability thanks to the greater ventilation surface that includes the upper, insole and the laterally perforated EVA and TPU midsole. The ventilation channels visible along the midsole profile are protected by a very resistant mono-burr Nylon mesh to prevent the entry of pebbles and impurities. The mid-cut upper is made with a Nano-Cells 2.0 structure composed of super breathable cells that work in synergy with the GORE-TEX SURROUND membrane for unprecedented increased breathability. The lower part of the shoe is integrated with the Stability Control System, an anti-torsional stabilization system that integrates the ventilation holes of the GORE-TEX SURROUND technology. The tread is made of Vibram XS Trek compound for excellent grip on hard, soft and muddy terrain. 360-degree breathability and comfort.