In the early 20th century Burberry gabardine was recognised as the most suitable fabric for jackets and breeches as its proofed cotton threads, dense weave, and smooth surface provided a barrier to the wind and snow. Unlike earlier rubberised and waxed jackets it was also breathable. During the 1930s the mechanisation of the ski industry in the form of rope tows and ski lifts started to impact the design of ski outfits. The shift from mountain touring to downhill skiing demanded a different design of clothing. Fashion gradually shifted away from baggy styles to shaped trousers that followed the streamlined look of ski racers and were better suited to the new skiing techniques. In the new millennium, the booming snowboarding industry and rise of extreme winter sports have encouraged skiwear manufacturers to emphasise innovation in fabrics.