Man Fashion Week: Z Zegna Spring 2010 Collection

Body conscious strokes on old school cuts turn up in Z Zegna, Alessandro Sartori of Z Zegna mixes dandy-ism with street cred, pairing svelte blazers and waistcoats that are nipped at the waist and worn with sheer T-shirts, as well as single- and double-breasted suits snug, nearly as tight as his head-to-toe ensembles in oxblood-colored leather.

Launched in 2004 as Ermenegildo Zegna's younger, more fashion-forward collection, the Z Zegna line now accounts for about 15 percent of its parent company's bottom line. Design head Alessandro Sartori grew up in a small mountain town renowned for the wool it produced for Zegna, and Sartori—his surname is Italian for "tailor"—has spent virtually his entire career with the company.