Layering Position Midlayer or Insulated Outerwear Features True to Size: Purchase your normal size 37.5 DownTek insulation - 800-fill power, 37.5-enhanced down fights off wetting of down clusters. Exclusive 37.5 Active Particle Technology Exhausts moisture and maintains core body temperature Traps odors (human signature) and releases them when laundered Advanced downproof, the nylon shell repels snow/rain and blocks wind Center-front Vislon #8482 zipper resists snagging and provides easy operation with gloved hands Articulated fit for enhanced range-of-motion Innovative, reach-up arm design utilizes underarm baffling to prevent the jacket from riding up when arms are raised Drop-tail hem provides added coverage to prevent drafts when glassing Superlight, single-pull adjustable Turret Hood Two hand pockets Two interior stash pockets Materials Shell / Lining: 100% Nylon FIll: 80% Down and 20% Polyester fibre