The ideal insulation solution for just about every weather situation, our W4 Light Sorona Jacket is lightweight with a 400T nylon ripstop shell and 100 g Dupont Sorona® filling. The Sorona jacket can be used as a 2nd layer or on its own. Softshell side panels and shoulder area offer extra comfort and mobility. Two zippered front pockets hold your go-to essentials where they belong. This lightweight insulation is highly packable and great for your next fishing adventure.