The North Face Apex Elixir jacket is lightweight & highly wind resistant, & uses 4-way stretch TNF Apex Aerobic Soft Shell fabric. It also has a DWR finish for good water repellency & features two handwarmer pockets, reflective accents, reversed coil front zip & adjustable hem & cuffs.GLOSSARY: Apex Aerobic: The lightest, most breathable of TNF's soft shell fabrics, w/4-way stretch.DWR (Durable Water Repellent):A DWR treated fabric will bead-up water on its surface to stop it soaking into the fibres. This maintains breathability & shortens drying times.