Why: They’re feminine and easy, but also professional.

What to look for: Shifts and body-conscious shapes are key, Sherin advises.

What’s modern: Empire waists, classic shades of gray, and flattering modern prints.

Pictured: Vera Wang Lavender Label cotton-blend belted dress, $495; Neiman Marcus, 888-888-4757.

Why: A bold one will update your wardrobe in an instant. A coat "gets more face time than we think," says Linda Fargo, senior vice president, women’s fashion office and store presentation at Bergdorf Goodman.

What to look for: Structure, and a belt.

What’s modern: "An element of novelty — the fabric or details should be interesting," counsels Stephanie Solomon, fashion director of Bloomingdale’s.

Pictured: DKNY brocade coat, $695.

D&G forest-green blouse, $345.

Why: Greenfield scores this look as "inherently grown-up and chic."

What to look for: Luxurious fabrics and classic shapes.

What’s modern: Skirts with detail, like buttons or stitching, and interesting sleeves on the shirts.

Pictured: Banana Republic checked blouse, $79. Tibi stretch wool skirt, $248; Tangerine, 773-772-0505.

Why: "Clothes that follow the shape of the body, without clinging, are the key silhouette for fall," Greenfield says.

What to look for: An original shape to the jacket — pronounced lapels, a cinched waist — and precise, well-cut tailoring.

What’s modern: Pairing a strong suit in a subdued color, like gray, with a silk shirt in either a bold color or a soft print.

Pictured: Ports 1961 by Tia Cibani wool blazer, $550, and pants, $550; special order, 866-433-7678. Ports 1961 silk top, $785; Nordstrom, 888-282-6060.

Agnes B. dress, $565.

Originally published in MORE magazine, September 2008.