Women's Brooks Down SweaterLayering 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 while also regulating body heat and moisture inside the jacket Advanced downproof, 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