Harkila Wildboar Pro TrousersHarkila Wildboar Pro Trousers The Wildboar Pro Trousers are made from AirTechTM, a robust, windproof and water and dirt repellent canvas fabric. On their entire front and on the rear up to above the knees, the trousers incorporate a special knitted protective fabric of strong polyethylene. Because of this, the trousers are certified and approved as a protective product for wild boar hunting by the German agricultural and forestry test institutes, KWF