So many different opinions on sizing!
There are so many different opinions on sizing here where most are saying to go up a size so I'll now give mine.
After reading all of the reviews I was unsure of what to do but after a lot of deliberation and checking and re-checking my measurement against the sizing chart I decided to order my true size. I am 5'9 and about 140 pounds. I however am not exactly in proportion, I have long legs and a shorter torso. I usually wear a size 6 so bought a size 6L and I am so glad that I did. The length is perfect and the tapered waist design sits perfectly above my hips. Now to make it even a little easier when people are trying to decide a size I have a 26inch waist and 36inch hips.
However the legs at the thighs are quite narrow especially around the zipper area, so if you have larger thighs then these pants may not be suitable (I would suggest trying a pair on first before ordering)
I also ordered 2 pairs one black and the other asphalt grey and found the the grey are slightly smaller.
I have only tried them on so far and will be putting them to the test in a couple of weeks on a 2 week climbing trip to Mt Arapiles Australia so will put up another review then. For this reason have only given a 4 star rating.