I have an REI expedition weight fleece pullover that I wear under my La grave shell. As a general rule it's too hot. As a given, it's tight. I hate coming in to sit down for lunch and roll around looking like I had three people help me into it. No it's not restrictive, i'm just a big boy in a short frame.
Easy answer....lose some weight. Well, while it's in process, it's not going to happen by the end of this ski season, so i'm in search of a loose fitting layer for under my jacket.
Maybe "loose" can't be unsed in combination with "base layer" and I'll have to figure something else out. Usually it's just the rei fleece or long sleeve wool long underwear that I am wearing. With that jacket (even though it's only a shell) I've yet to be cold.
Shoot, maybe I need to start thinking 3 layers, but just real light stuff: skin tight, loose fitting, then shell.
If anyone has some good ideas, let me know. Every ski shop in the area has stuff for the slender guys, but my moobs and stomach belong behind some loose fitting stuff, not out in the open while people are trying to enjoy a $15.00 hamburger at the top of the mountain.