Confidently brave harsh climates with the lightweight Outdoor Research Women's Helium Down Jacket. Bluesign-approved water-resistant Pertex Quantum material with Diamond Fuse technology and a 20 D ripstop lining ensure a long and loyal service life. This jacket features RDS-certified 800+ fill-down insulation for advanced warmth in frigid weather. Weighing in at less than .8 lbs, this rugged women's down jacket is perfect for hiking, climbing, or alpine skiing.