The Pendleton Westerly shawl collar sweater is super cool, but keeps me warm.
All my winter stuff is in storage and I have no access to it. I expected to be out of storage before the winter came, but now I am cold and without my favorite sweaters: cable knit shawl collar sweaters ala Steve McQueen. Deal is this: I have enough shawl collar sweaters in multiple colors that I do not need duplicates. When I am finally able to get all my stuff out of storage I will be very happy, but I have too much stuff.
Another sweater made famous by media that I love, and super comfortable too boot, is the Pendleton Westerly. This ultra-comfortable 3GG sweater immediately lets people know that you are a chill slacker who doesn't care much about anything, while also keeping you warm.
Vintage models are available on ebay and etsy, but Pendleton has been making an exact-ish replica of the Dude's sweater for a few years now.