Brooks Brothers, $118
For decades, flannel-lined khakis have been the outdoorsman's best friend when blustery weather hits. This winter, consider them a cold-combatting alternative to your favorite cotton chinos. Whether fully-lined like the archival take from L.L. Bean Signature, or simply accented with plaid flannel at the cuffs, waists and pockets like the slim style offered by Brooks Brothers, they definitely add a bit of brawny, seasonal charm—not to mention some comforting warmth—to your cold weather kit.