Event waterproof trouser for 2016 is the lightest and most breathable trouser in golf the critical difference between the event technology and traditional waterproofbreathable fabrics is the millions of microscopic pores built into its propriety membrane that work instantly to vent water vapour sweat that builds up inside your apparel this is called direct venting technology and unlike other technologies it doesnrsquot need to get wet to work itrsquos a lsquodry systemrsquo that