@ Eric Chan
Yep, my thoughts persactly! My Kimtah eVent rain parka does the same job and is quite durable. No sense carrying extra slothing.
My polyester long sleeved shirts are fairly wind resistant but breathable. I always wear them backpacking in the mountain west for sum protection. Once in late April in the Grand Canyon I wore my REI Sahara long sleeved shirt over a light fleece vest and was fine in a very cool wind. Mechanix gloves and a hat helped too.
At the time I had a GTX PacLite parka but I left it at home, thinking I wouldn't need it with a 5 day high pressure forecast. Never again will I backpack without a WPB parka.

