DWR treated (water repellant) polyester/cotton in 4-way stretch in the back, knees and back of the knees. Elastic adjustment in the waist for the best comfort. 2 big pockets in the sides with zipers, handpockets and a backpocket with zipper. Ventilat ion opening along the sides with 2-way zipper. Enhenced inside of the legs ends. Adjustable width in the legs and a hook to attach boots to.