Damn - didn't realize there were so many others like me who only wear button fly (501) jeans! I love the quick tug that opens them all up at once, the ease of pulling out my junk to piss and how great they feel going commando. Almost 7 days/week wearing them. Wish Levis would come back out with broader range of colors - even their online official site only has a couple of non-blue colors! Recently been wearing more of the stretch versions - they really showcase the nice bulge down my left leg (and who doesn't love getting the second crotch look from guys who can't believe what they saw at first glance)!