Check REI and the variety of soft shell hiking pants they carry from Patagonia, Marmot, REI, and Mountain Hardware. These are the same technologies that Sitka and KUIU are leveraging, but because they are delivered to a much larger market you can find them on clearance.
I bought a pair of Mountain Hardware Nima pants for $65 on closeout....they retail for north of $150 and are some of the best pants I've owned.
