WTB - Super Warm Pants

I am looking for really warm pants. I am open to different options but they need to have a lot of insulation.

I would like a medium, but if a small runs big that could work.

I have tried to do research but there really isn't a huge market for insulated pants.

SOme of the ones I would like to buy if the price is right are:

Arc'teryx Kappa Pant
Mountain Hardwear Nilas Bibs
North face Makalu Pants
Western Mountaineering Down pants

I need them to be very warm. THe atom LT pants won't cut it. I live in the Colorado Rockies at 10K Feet and I do a lot of winter night photography. Ever since I upgraded my jacket to the amazing Arc'teryx dually I now feel my legs freezing. I think the dually does such a great job up top that it exaggerates the cold on my legs.

Here ya go!

mountainproject.com/v/fs-ja…

thanks I messaged him and he hasn't written back

PM sent-

mountainproject.com/v/fs-ed…

If I can find them (never unpacked them from the last move) i have a pair of feathered friends down pants. Not sure of the size, but I'm between a small/med in most clothes.