Hamptons : Lucky Magazine

Barbara Trujillo

This vintage store looks like a film set from an old Western: Trujillo offers an impeccable range of antique turquoise belt buckles and polished fetish necklaces, all against a backdrop of collectible American folk art.

2466 Montauk Hwy., Wainscott, 631-537-3838

Bellhaus

This 2008 arrival is way off East Hampton's main shopping drag, but it's worth seeking out for the range of items you're sometimes hard-pressed to find in New York City proper, like Pierre Hardy gladiator sandals, Vincent Longo lip glosses, and Tomas Maier bikinis.

328 Montauk Hwy., Wainscott, 631-537-5050

Blue & Cream

Conceived as a hip co-ed mini department store, Blue & Cream stocks tailored skirts from Alexander Wang, slinky Brazilian bikinis, apothecary goods, and even CDs and DVDs.

60 The Circle, East Hampton, 631-329-1392, blueandcream.com

Calypso St. Barth

Calypso boutiques are dotted all along the East End, primarily because their eponymous collection of silk wrap dresses, tie-dyed scarves, and paper-thin cashmere cardigans works so well at the beach (after all, the chainlet was born in St. Barth).

24 Jobs Ln., Southampton, 631-283-4321, calypso-celle.com

Henry Lehr

These boutiques now blanket the East Coast—which makes perfect sense, since Henry Lehr was one of the first (way back in 1989) to display an entire wall of denim. The East Hampton branch offers much more than just jeans, like cashmere cardigans by Inhabit and slightly rumpled Golden Goose button-downs.

16 Newtown Ln., East Hampton, 631-329-5424

Intermix

One of America's most popular boutique chains, Intermix tailors its Hamptons mix with on-trend picks from designers like Diane von Furstenberg, Stella McCartney, and Elise Overland.

64 Main St., Southampton, 631-283-8510

J.Crew-at-the-beach

As the name modification suggests, most of the merchandise at the J.Crew shops in the Hamptons is beachy. Beyond the bikinis and flip-flops, however, there's a rainbow array of summer-weight cashmere cardigans, along with coral-hued sundresses and patent flats.

84B Main St., Southamptom, 631-287-2869, jcrew.com

Jacques & Gilles

This boutique inside Andre Balazs' Sunset Beach Hotel has gotten a new name, face-lift, roomier digs, plus a slate of fresh-to-the-island items, like Erés bikinis and Paul & Joe sundresses.

35 Shore Rd., Shelter Island, 631-749-2001

Lisa Perry

Fashion designer Perry's collection—which nods to '60s-era icons like Mary Quant—features irresistibly appealing A-line felt dresses, splashed with geometric shapes and numbers. As a nice complement, Perry also sells coffee-table books, fun stationery, and beach towels.

45 Main St., Sag Harbor, 631-725-7467, lisaperrystyle.com

Malia Mills

Consult with the incredible women in this shop and you will walk out with a bathing suit that fits perfectly and that looks and feels amazing—end of story. This tiny shop is packed with all of the brand's most popular cuts, conveniently sold as separates and in bra sizes, in every conceivable color and pattern.

53 Jobs Ln., Southampton, 631-259-3759, maliamills.com