Port Authority Essential Rain Jacket. A year-round must-have, this fully seam-sealed 8K/5K waterproof, breathable 2.5-layer jacket has a DWR finish. It packs easily and gives great water-repellent, wind-resistant performance. 100% polyester shell bonded to a waterproof laminate film with DWR finish. 8,000MM fabric waterproof rating. 5,000G/M2 fabric breathability rating. Interior grid print. Waterproof center front zipper. Interior storm flap with chin guard. Front zippered pockets. Elastic cuffs.