Yes, the Al Maha Lounge at Hamad International Airport (DOH) in Doha maintains a Smart Casual dress code at all times. This means that while you do not need to wear a suit or formal attire, you should avoid clothing that is overly casual or revealing. Prohibited items typically include sleeveless shirts for men, gym-wear, swimwear, and beach flip-flops. Travelers should also be mindful of local cultural sensitivities in Qatar; high-fidelity etiquette suggests that clothing should generally cover the shoulders and knees. Most passengers wearing jeans and a clean polo shirt or a modest sundress will find they meet the requirements without issue. If you are arriving from a long-haul flight in pajamas, it is a good practice to change into more structured clothing before attempting to enter. Lounge staff reserve the right to refuse entry to anyone deemed inappropriately dressed, ensuring the lounge maintains a quiet, professional, and sophisticated atmosphere for all international transit guests.