In reply to akana: I've got the Rab VR Alpine, which is similar to the driclime. IT works great with a light baselayer under it in cool summer conditions or if the wind is biting. Fairly good shower protection as well. I don't bother with a waterproof now in summer. If its really raining, I don't mind getting wet as long as I'm warm enough.
Its proper good at regulating your temp and getting rid of sweat. It works so good that I'm thinking of getting a full on VR for winter duties. Its feels really nice next to skin as well.
The driclime works just as well, is lighter, but the hood is unlined and a bit pants.
Hope this helps
Ryan