1) Canada Goose The Snow Mantra Parka, $1,200, Amazon. 2) Columbia Women's TurboDown Wave Heatzone 1000 Jacket, $250-$450, Amazon. 3) Canada Brookvale Hooded Coat, $550, Nordstrom. 4) Winter Warmer Coat, $104, Llbean. 5) Marmot Women's Kitzbuhel Jacket, $125, Amazon.

It is naturally water resistant, thanks to the lanolin it contains. Wool is also an excellent insulator, and a coat made of wool will keep you warm when other fibers might not.

1)By Peggy Bolz. 2) THE LAYERS. 3) Base Layer: The "keep-you-dry" layer. 4) Insulating Layer: The "keep-you-warm" layer. 5) Outer Shell Layer: The "protect you from the elements" layer. 6) Cotton: While cotton is lightweight, breathable and comfortable, it has no "wicking" abilities.