Winter is coming, and along with it, a few extra inches of holiday girth, thanks to all those fireside Manhattans and your coworker's addictive Christmas cookies. While adding a few more sit-ups to your workout routine, consider Calvin Klein's new Core Sculpt underwear. Unlike older, overall silhouette shapers, Core Sculpt's T-shirts and tank tops are designed with a compression fabric that focuses on the core area—managing to flatten the gut—while mesh inserts improve breathability. Slip one on under your wool sweater and no one will be the wiser—till spring, that is.
($55-60.00 at Calvin Klein.com and select Nordstrom stores.)