These fibres are special indeed. Long, thin and extremely cut-resistant, they form separate layers in our cut protection clothing. When a chainsaw comes into contact , the chain teeth rip out the long, tough fibres, which wrap themselves around the chainsaw’s drive in milliseconds and stop the movement. All new models and prototypes are rigorously tested to DIN EN 381-5 in real life conditions - as you'll see from the diagram in our catalogues. In fact, we test all our products to the very highest standards. The result? You can only buy clothing with officially approved cut protection at STIHL.