This year I'll be wearing all merino wool base layers - microlight tops and bottom (150 gm/m), medium weight top and bottoms (230 gm/m) and heavy top (300 gm/m). I'm hoping by layering these various weight wools I'll not need any fleece. No fleece means a weight savings of about 2#.

I've also added a down jacket that has a waterproof outer shell meaning I no longer need a hardshell. Another 1/1/2# not needed.

Having said this I wouldn't dream of carrying anything on my back for a winter camp. It's a pulk all the way for this lad.