"Spiewak has been around for over 100 years; it’s the same company that makes weather-defying coats for NYPD cops, oil riggers in Alaska, and Iditarod sled-dog mushers. So, as you'd expect, the company makes an array of serious down coats, if warmth is your main concern. And while we're all about braving the elements, we prefer functional winterwear with a little style. The brand's Sonntag coat is both, with a cozy herringbone wool shell and a sleek shawl collar. But our favorite part may be the skirted back, adding a little flounce to typically bulky outerwear."