The classic pin-striped suit, often considered a trademark of bankers and business tycoons, has been updated this season with a contemporary edge in trim silhouettes and a fresh array of fabrics. Here are some of our favorites from the fall designer runways.
Christina Garofalo 
Z Zegna’s ultrasoft wool suit features wide-set pinstripes in burnt orange—the perfect pop of color for fall. ($1,745; www.zegna.com)  
Alexander McQueen is sending stripes in a new direction—literally. The wool-and-cashme…