Combat the typically harsh climate of high mountain treks being well protected thanks to the very warm FUSION LINES LOFT JKT M. The long haired POLARTEC® HIGH LOFT™ fleece provides an outstanding combination of warmth, lightness and breathabiliy offering unparalleled comfort despite sub-zero temperatures. Under the arms, stretch POLARTEC® POWERSTRETCH PRO™ panels improve ease of movement and promote better moisture transfer to guarantee optimum freedom to move adding ideal convenience to your high altitude sports projects. The high collar and fitted hem and cuffs from this jacket retain warmth, while the full zip allows instant ventilation when necessary.