I also use pajama/thin sweat pants material. Keep it on the outside if at all possible, and put a real glassmat layer on the back. That way, sanding is much easier. A good rule it, the uglier the fleece, the stronger it is //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Like your legs //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gifPantyhose is another good one for odd shaped sections.