Description Of Helly Hansen Warm Pants Head out in the cold in confidence with the Prowool Pant, constructed of LIFA® T3 hollow fiber technology and merino wool to deliver exceptional warmth and moisture moving management to the lower extremities. Complements all HH® Warm„? tops. HH®Warm™. This is the natural choice to stay warm in sub zero environments. This baselayer features two different layers in one. The inner Lifa® fibres ensure you stay dry in all conditions, while the outer, soft Merino wool adds warmth and comfort. This means you get extreme insulation and superior evacuation of moisture. Features: Lifa® T3„? hollow fibre technology Merino wool Flat lock stitching Low bulk cuffs