I do a lot of things where cotton underwear is a no-no and am having a hard time finding comfortable synthetic undies. Outdoor clothing companies make some great underwear, but I have yet to see any that take "larger" guys into account. Boxers and boxer-briefs always end up riding up my legs after walking a few miles and non-pouch briefs are far from comfortable. My favorite underwear for everyday use are my CK pouch briefs and I'd really like to find an outdoor/synthetic equivalent. Any ideas?