I've been looking at different ways to lighten my gain gear.the cuben rain chaps are pretty cool, but all the ponchos I have looked at don't seem to cover past the elbows. Are there cuben or really light sil nylon ponchos that give better coverage on the arms? I don't need to use it as a tarp just as raingear. Thanks, oh if you have other ideas to pair with the rain chaps let me know.