Originally Posted by
rdtindsm
Shop thrift stores for merino / lamb's wool pull-over sweaters as base layer, or even as insulating layer with wind blocking shell. Not smartwool, but $4-5 rather than $$.
I do this, too. It's also good to look at sweaters that have tags that are marked as one size too big for you, as a lot of them wind up at the thrift store because somebody accidentally shrank them.