Business attire for men varies depending on the occasion and the industry. Here are some general guidelines based on the search results:

Business Professional Attire

• A matched suit in a dark, solid-colored or pinstriped fabric made from natural fibers such as wool or a wool-blend
• A conservative tie made from silk or other quality material
• A solid-colored or striped button-down shirt
• Dress shoes made from fine leather with leather soles

Business Casual Attire

• Dress pants or chinos in neutral hues such as khaki, espresso, and charcoal grey
• Button-down shirts in any color with or without a tie
• Blazers or sports jackets
• Sweaters or dress shirts without a top layer
• Shoes such as loafers, oxfords, or dress boots

Its important to note that each organization may have its own dress code, so its always a good idea to inquire about appropriate workplace attire. Additionally, its recommended to keep hair and jewelry simple and to follow professional grooming standards.