Patagonia's latest down jacket is so lightweight that they're calling it a shirt. The Ultralight Down Shirt ($250) is their lightest insulated piece with premium 800-fill goosedown, a slimmer cut for easier fitting under a shell, and a Deluge DWR finish to keep the moisture away. Link
Patagonia's Silent Down Jacket is less noisy and a lot more eco-friendly
A down jacket that's doing some good.