1.2 oz./yd/39 gsm (US), 2 oz./L yd (CA), 100% polyester. Lining - Polyester. Insulation - 2.3 oz. thermal poly fil. Water resistant finish. Stretch binding at armholes and hem. Center front zipper with auto lock slider and reflective toggle. Lower pockets with invisible zippers. Packable style into separate storage pouch.