The last few weeks have been unseasonably gorgeous in Vancouver, but quite cold and frequently windy. Weather like this has required some thoughtful dressing in the past, but I'm done with the two t-shirts method and onto Salomon's XA WS Softshell. This thing is Windstopper, so cuts wind but also eases the impact of heavy rain, let's out the sweat and keeps in the heat. The hood is particularly nice as it articulates with the movement of your head if you need to have it up while running - I had mine up the other morning when the temperature dipped below 0 and the fog was sticking to me like honey.
If you're looking for a running jacket for yourself or a Christmas gift for a runner, this is the one.