Using the JRC brollywrap is ok if the weather isn't too bad but if it's thunderstorms coming straight at you? My old Trakker SLX has been passed on but i kept the winter skin and this is why. It fits perfectly over the brolly to give me that little bit more protection from the elements. What's more the winter skin packs away light and small into my old gas mask bag from the 1980's. Pukka!