“JACK WOLFSKIN's classic NORTHPANTS get a full technical upgrade. FUNCTION 65 NANO-PEL is based on our super-robust and fast drying FUNCTION 65 polycotton hybrid fabric, and is further enhanced by a Nano-Tex finish. The material is enhanced at the nano, or sub-molecular, level to prevent dirt or moisture adhering to it and limit unpleasant odours. The dirt repellent and odour limiting characteristics of this apparel allow it to be worn for longer periods without washing and the surface of the clothing also benefits from an effective, water repellent impregnation treatment.”