Arc'teryx Kappa SV Hoody

[johnapril]

Good day. I am planning a trek to and from Gokyo Ri in February 2011. My coat on hand is an Arc'teryx Kappa SV Hoody (windproof, water resistant, GORE WINDSTOPPER, insulated with Primaloft® Sport [a synthetic, of course]). Is this thing going to be warm enough if I layer it at that elevation?

Thanks in advance.

[Landfall38]

Probably OK while walking, BUT: It will be really cold sitting around at night -- I expect you will need much more. A good fat down (squishes/packs down much better than synthetic) coat really makes a difference.

[johnapril]

OK. I'll do the down coat.

Thanks!