In 2026, the Las Vegas dining scene follows a "dual-track" dress code. For casual dining, buffets, and cafes, anything goes, including shorts, t-shirts, and sneakers. However, for "Fine Dining" or "Upscale" restaurants (like Carbone at Bellagio or Joël Robuchon at MGM Grand), upscale attire is strictly required. Men should wear slacks, a collared shirt, and dress shoes; women typically wear dresses, skirts, or chic separates. "No-go" items at these high-end spots include swimwear, athletic wear, flip-flops, and casual hats. Interestingly, Vegas has a "polished casual" culture where many people dress up slightly even for shopping or mid-tier dining to match the glamorous atmosphere of the resorts. If you plan to head to a nightclub after dinner, you must be in dress code (no sneakers or shorts for men), so dressing "to impress" for dinner is often the most efficient high-value move for a night out on the Strip.