I weighed and tried on my pants this morning. They weighed 4.1 oz on my postal scale in size large.
I noticed the texture of the material is different on the inside than the outside. Inside has tiny, fuzzy bumps that seem like they would enhance wicking. The out side is smooth which should help water sheet off. None of this is yet confirmed, but it makes logical sense.
I am pleased with the fit. I am 6'1" tall and weigh 190 lbs, waist 36" and inseam 33". They fit just a little loose in the waist untill I draw the string in a little, this is good. The legs just touch the tops of my shoes, this is also good. I noticed that the crotch is not gusseted but in spite of this, the pants allow for full unresticted movement, even when stepping up onto a big boulder. What's more amazing is that they accomplish this without looking baggy!
The only concern I have so far, is that the cord lock at the waist is rather large and may be uncomfortable under a pack waist belt buckle. Haven't had time to try this yet.