MONTANE Featherlite Marathon Women's Outdoor Jacket Weather-resistant, Pertex - Microlight outer shell for complete windproofness and high water-resistance Reflective, 360 degree 3M Scotchlite reflective trim - to keep you seen in th edark and low light conditions. Sport Specific Active Cut - articulated arms and slight drop tail Breathable, underarm 'afterburner' ventilation - to keep you cool in hot conditions. Packable - supplied with stuff sac for easy transportation.