A while back I made fun of some Banana Republic pants I found that were supposed to have "particles of volcanic sand" in them. I am now officially eating my words with a fork and spoon.
These are the best travel pants I've ever found. They're warm when it's cold and cool when it's hot, dry quickly, weigh nothing and look really sharp. Lots of colors, I overindulged a bit and ended up with 3 pair. Disclaimer, I do NOT work for BR. Wait until they are on sale and stack discount codes, which is quite often.