This Northern Italian brand has combined tailored clothes with treated and garment-dyed fabrics to create the season’s best easygoing separates. LEFT: Boglioli cotton, nylon, and polyester blazer and wool flannel pants. Salvatore Ferragamo shirt; Richard James tie; Eleventy gloves. MIDDLE: Boglioli wool blazer and cotton, polyester, and elastane pants. MSGM shirt; Corneliani turtleneck; Paul Smith tie. RIGHT: Boglioli wool, nylon, acrylic, and silk blazer and cotton pants. Corneliani coat and turtleneck; Ralph Lauren shirt; Pal Zileri tie.