I bought a pair of PrAna hiking shorts and really loved the way they felt.  So, I bought these hiking pants and wore them on a 5-day backpacking trip.  First, let me say that they were the most comfortable pair of hiking pants I have ever worn.  Ever.  They are snug, yet breathable.  Next, I was very pleased to find that I was able to get them clean.  After 5 days of sitting in dirt I came home, sprayed them up with a stain remover, and threw them in the wash.  They came out as good as new.

If there is a con to these pants it was that I felt they didn't dry as fast as I had hoped.  I got caught in the rain one day, and they seemed to take a bit longer to dry than my other hiking pants.  But, for the comfort, they were worth it!