Key Features for the Stormtech Nautilus Packable Storm Jacket: 2,000mm Waterproof/3,000gm2 Breathable microshellPackable Jacket - Lower back built-in zip pocket to packSeam-sealedLightweight, soft & flexibleZippered reverse-entry front pocketsAdjustable cuffsAdjustable drawcord hemShell: 100% Nylon microfiber, 85g/m2 (CDN) / 3oz/y2 (USA)Lining: Polyester mesh, nylon taffeta