Ermenegildo Zegna Mens Tops. Fashion category: Casual Button-Downs. SKU: 305275-ZCO10. Ermenegildo Zegna Mens Chest Pocket Twill Over Shirt. Featuring a front button fastening, long sleeves, 2 chest patch pocket and a classic collar. 58% cotton; 40% lyocell; 2% elastane.