Zegna Gives Fashion an Anatomy Lesson

At the fall 2018 show in Milan, Alessandro Sartori presented an impeccably tailored collection for the well-funded man.

MILAN — If some designers amass vintage clothes to form a personal collection, Alessandro Sartori does so for an entirely different reason: to perform dissections.“Shhhh!,” he said backstage, hours before his Ermenegildo Zegna show held in an underground hall of the Neo-Brutalist Rontgen building at Milan’s prestigious Bocconi University. “I buy vintage clothes and take them apart.”His purpose in anatomizing old duds is to find in them methods of stitching and construction that have largely p...