When I went backpacking in the Wind Rivers last summer, I wore my Mountain Hardwear mountain kilt. I experienced no problems-but then again, it's lightweight nylon and I didn't have a sporran with anything. Might I suggest getting one of those? Sure, it isn't pleated and doesn't swing, but hey, it's the best thing for backpacking I've found in years. Lightweight, breathes well, seamless waist(excellent for carrying a backpack). So, even though some of you fellows will tear me apart for mentioning it, my solution would be a Mountain Kilt.