When the forecast is uncertain, bring along some warmth insurance. The packable jacket has a streamlined fit to slide under a shell or ride solo when you don't need protection from rain or snowflakes. The external fabric has mechanical stretch so it won't feel constricting or ride up as you move. Made of polyester with easy mechanical stretch. Insulated with G-Loft Supreme synthetic polyester that's light and compressible. Lined in smooth polyester. 2-way front zipper. Close fitting hood with a one-hand adjustment in back. Zippered chest pocket. 2 handwarmer pockets with bound edges for durability. Inner mesh pocket. Elastic binding at hem and cuffs.