Patagonia Ultralight Down Jacket
This down-filled jacket (buy it now from $179 at Backcountry) weighs just 9.5 ounces, even less than Patagonia’s regular Down Sweater Jacket (another good choice if you’re traveling to colder climes). The 15-denier ripstop outer shell has a water repellent finish and is designed for maximum thermal efficiency. While it could use a few extra pockets, the zippered one at the chest will keep your essentials safe. Stuff the jacket into the left pocket to create a travel pillow, and into the chest pocket to pack it away even smaller. You’ll feel good knowing the geese that supplied their warm feathers were neither live-plucked nor force-fed.