Published November 1, 2010 12:00AM

It’s what’s on the inside that matters most, and because the Boreal 20 is stuffed with some of the loftiest, most compressible synthetic insulation around, it’s remarkably warm and cushy for its weight. Bonus: The ergonomically tailored foot area and hood are designed specifically for women’s bodies. 20°, 2.7 lbs; ems.com