Unless you’re one of those folks who made a New Year’s resolution that went something along the lines of, "So help me God — I will never, ever, ever drink again — and this time, I mean it!", you know that a bracing pop can be just the thing, particularly when the temps dip below freezing. Enter the flask: that subtly curved and storied vessel indispensable for toting about booze, at the ready thigh-side or tucked in your pocket. But we’re not talking about Leaving Las Vegas drink-yourself-into-oblivion here — that’s just plain passé. We’re suggesting a classy, hip decanter that’s suitable for all your potent potables. And what better time than St. Patrick’s Day to carry around your booze?

During the Jazz Age — think bathtub gin and flappers — flasks were de rigueur. Now you can relive those speakeasy days: Travel 2000 makes it as simple as learning the lindy, with its Collinsware leather-covered flask with screw top ($19.97), an excellent and discreet companion for long train rides, trans-Atlantic passages, and other excursions when someone else is doing the driving. The roaring ’20s also saw the literary landscape loom large with manly figures — Hemingway, F. Scott Fitzgerald — and boy, could they drink. Cater to the writer/tragic figure in your life with an engraved outdoorsy flask ($45) from Orvis: choose from a duck hunter’s version featuring man’s best friend, or a handsome pewter flask boasting Orvis’s own trademark fishing reel. Both make marvelous and sporty winter warmers to have ready at your side.

In the one-size-does-not-fit-all category, check out Monroe Salt Works, which carries flasks that come in assorted volumes: eight ounces, 3.5 ounces, 50 milliliters, and an adorable one-ounce size that fits on a key chain ($7–$18.50). These especially come in handy if you want to impress friends by concocting complicated drinks at a party, and you just know they won’t have all the various crème-de-whatnot liqueurs you require. For tony on-the-town tipplers looking for a snort on the sly, Tiffany & Co. offers a stunning half-pint, sterling-silver container ($500) that’ll take the down-and-out decadence associated with public drinking and turn it into the sophistication of en plein air imbibing.

Where to get it:

• Monroe Salt Works, 202 Mass Ave, Arlington, (781) 646-6699.

• Orvis, 84 State Street, Boston, (617) 742-0288.

• Tiffany & Co., Copley Place, 100 Huntington Avenue, Boston, (617) 353-0222.

• Travel 2000, Prudential Center, 800 Boylston Street, Boston, (617) 536-3101.