Chainsaw protection to EN 381-5, Class 1, Schoeller® ‘dryskin’ outer material, reinforced knee to ankle patches, 4 pockets, elasticated waist. STIHL HiFlex protective clothing is designed to be lighter and more flexible than traditional protective clothing. With excellent breathable and water-resistant properties, this range is ideal for tree surgeons, arborists and anyone requiring lighter trousers. Design C.