5.25oz. Poplin (65/35 poly/cotton blend.). Concealed snaps at the waist, neck & 2 chest pockets. Large back pockets. Button closure on left back pocket. Stain release finish. Heavy-duty nylon 2-way front zipper. Bi-swing back. Side waist elastic inserts. Roomy through the shoulders. Inseams: Regular=31, Tall=33