a lot of people here bag on this fashion, but i've been thinking about it alot lately. it seems like its probably the most efficient summertime dress of the northwest. you see, you have the shorts for wearing during the day and when things are warmer...put at night or if the brush/conditions warrent it, you just slip the polypro underneath and wham! you're fully protected and its a great warmth retainer. its much more efficient than bringing both shorts and pants, and those pants that have the legs zip off are super, super DORKEY and prone to failure. what if the zipper breaks? that could be the difference between a good trip and a bad one. better to rely on the old standard. plus polypro clings to the legs providing better aerodynamics.