If all you're looking for is something that you can roll up and stash but use when you want to conceal and hide a bit better, why not get something like this?
http://www.ghilliesuits.com/index.as...PROD&ProdID=16
Its more a pack cover/poncho kind. But over all if you're not intending to really branch off from the unit either to the side or up a head, this isn't really something you need/want to deal with.
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"The hydrogen economy car from the people who brought you the '
Hindenburg'" - Glen Foster
Condoms do not guarantee safe sex any more. A friend of mine wore one and was shot by the woman's husband!