Visiting Pompeii in 2026 requires a "function-over-fashion" mindset. The most critical item is sturdy, closed-toe walking shoes with a thick, non-slip sole. The ancient streets are paved with uneven, often slippery basalt blocks and deep ruts from chariot wheels that can easily cause a sprained ankle in sandals or thin sneakers. For clothing, breathable, lightweight fabrics (like linen or moisture-wicking tech-wear) are essential, as the site offers almost zero shade and temperatures can exceed 30°C (86°F) in the summer. A wide-brimmed hat, high-SPF sunscreen, and sunglasses are mandatory for protection against the intense Italian sun. In the shoulder seasons (March–May or October), use a layering system with a light jacket or windbreaker, as mornings can be damp and cool. For a 2026 visit, remember that while there is no strict "religious" dress code like at the Vatican, dressing respectfully and comfortably will allow you to navigate the 170-acre site with ease.