Filson Upland Hunting Tech Jacket Filson's 3-Layer Field Jacket is built for the upland hunter who encounters severe rain, sleet and snow in addition to brush and heavy cover. Filson’s proprietary fabric combines a waterproof, breathable membrane with a rugged nylon exterior shell that resists tears and punctures from branches and briars. It’s fully outfitted for the field with pit zips, shell pockets, a rear game bag and attachment points for calls and transmitters. Fully seam-taped three-layer waterproof, breathable laminate with articulated sleeves and reinforced forearms YKK® AquaGuard® pit zips and two-way front zipper Zippered rear game bag Expandable shell pockets, microfleece-lined handwarmer pockets, zippered chest pockets and zippered security pocket Two-way adjustable hood and drawcord-adjustable waist Fabric tabs on chest pockets for attaching a whistle, calls or transmitters