OAMC Mens Tops. Fashion category: Casual Button-Downs. SKU: 23E28OAU54 COTOA005 001. Color: Black. OAMC Mens Black Embroidered-Logo Long-Sleeve Shirt. A cotton-silk blend shirt featuring a side embroidered logo, classic collar, front button fastening, long sleeves, and a straight hem. Cotton 100%, Silk 100%