Stream is the new generation mid-cut fast hiking boot for fast hiking. It adopts solutions that are part of the La Sportiva mountain DNA, combining them with technologies and concepts derived from Mountain Running 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 surface area ventilation which includes the upper, insole and midsole in EVA and TPU perforated laterally. The ventilation channels visible along the profile of the midsole are protected by a very resistant single-burr nylon mesh to prevent the entry of pebbles and impurities. The mid-cut upper is made with 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 features the integration of the Stability control System, an anti-torsional stabilization system that integrates the ventilation holes of the GORE-TEX SURROUND technology. The tread is in Vibram XS Trek compound for excellent grip on hard, soft and muddy terrain. 360 degree breathability and comfort.