Or you could go for the Cascade Pass area. I really want to do a big traverse there, think Eldo->Klawatti->Austera->Primus->Forbidden->Boston->Sahale->Buckner. But I want it on skis.
Long zips for better venting. Zips that don't cover your hip so you don't get gauged when wearing a pack/harness. My goretex has long side zips that don't go over hips. Hasn't really been a problem.