I carry my winter gear in my Hornet, which was given to me for free.
Anyone that knows me..knows that I carry enough insulation for two normal people. That and extra fuel and some luxury items, all in my 46 liters plus an extra detachable pocket I made for my pack.
Edited to add:
The Ridgerest was for sitting on the snow. In my pack was a long Exped 9, a Montbell SS2, a Nunatak Specialist, 2 Montbell down jackets, down booties, down pants, a Simmerlite, pot and cup, lots of food, a Sublite and much more.