Question; best material to make the sock from? I currently have one my best friend (wife <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />) made me from light weight tarp material. I think I'd rather something with holes, some sort of mesh maybe? Tramp material (too heavy?) shade cloth? spinnaker cloth (exy)? or something else I haven't thought of? What are the spi people useing?