Flylow Magnum Pants
I wear 34W/32L jeans, and these are perfect! Wore these one day. I probably still have the tags on my desk. Just not a "purple" guy. Fits the same as the Chemical pants, and honestly, it's tough to tell the difference. Huge vents, bomber construction.
All about 'em: http://www.flylowgear.com/magnum-pants-11.html