This winter weight jacket is part of the All Weather System and can serve double duty, worn alone for moderate winter weather or zipped into the Waterproof Systems Parka as a liner for severe cold weather protection. Insulated with Primaloft Body and lined with high quality 100% polyester non-pill micro fleece. Sleeves lined with soft polyester cire. Postal blue and 29" in length. Custom USPS reflective trim on front and back USPS insignia.