+1 for Melanzana Micro Grid Hoody! I'm wearing mine literally at this present moment.
They don't go on sale much but the regular price is pretty good. Made in the USA. Super snuggly. Performs well WRT breathability and warmth -- breathes excellently while uncovered, but is surprisingly warm when layered under a windshirt or some more weather-resistant piece. I don't recall the weight, maybe about 9oz for my medium -- but Melanzana has an avg weight posted on the product page. This is one of the few pieces of gear I have ever owned where, when I lost the first one I had for 2-3 years, I went out the following winter and just purchased another one.
The one downside is the lack of any zipper, but this is a beneficial tradeoff in some respects. You lose venting and easy on/off, but you gain a hood that works exceptionally well as a balaclava or face mask. And, the total lack of a zipper just makes this thing that much more compressible.