I rarely order clothes on-line, but these pants were great!  I have heavier thighs and these fit so much better than Colombia brand clothes which I find run small with very narrow legs.  I ordered the XL (long) which is probably equivalent to a size 16.  I still need to use a belt (would be nice if these came with a matching webbed belt, where they lost a star), but fit so much better than any others I have tried.  I love the large pockets for women!  (Finally!)  I hike in Arizona where it is hot and normally dry.  I wore them on a rainy day, and these don't breathe real well and my knees felt sticky, but on most days these are light weight, water repellent, and relatively cool (Order a light color).  I plan on ordering another pair of the convertible pants for summer.  They do make a bit of swishing noise, but that's typical of nylon hiking pants.  I ordered the light green and they are a nice sage color.