In reply to DoverPiker: I had high hopes for the VR Alpine Lite when I tried it on but it was so rustly and un-stretchy I thought I might as well be wearing something waterproof. Very disappointed.
Try the Montane Alpine Stretch for something light that moves with you. Nevisport have just got them in. Very tempting if you like to layer up.
I recently purchsed a ME Astron which is somewhere in between (ie a bit stiffer/more rainproof) but still lightweight (only 400g). Would have been tempted by the Montane though if it had been available earlier this winter.