Andrew Marc reversible rabbit and nylon vest, $550 at Saks and Bloomingdale’s; Yves Saint Laurent mink scarf, $1,695; Saks Fifth Avenue private label leather and beaver fur trapper hat by M. Gellar, $395; American Apparel cotton thermal crew neck, $20; 2(x)ist cotton thermal “waffle” long johns, $28 at Bloomingdale’s, Macy’s and Nordstrom. (Photo: Tom Ackerman for The New York Times)