Packing for Pompeii in 2026 requires a focus on durability and sun protection, as you will be walking 3–5 miles on ancient, uneven stone surfaces. Most importantly, wear sturdy, closed-toe walking shoes with good grip; the original Roman cobblestones are large, often slippery, and have deep ruts that can easily twist an ankle in sandals. For clothing, choose lightweight, breathable layers, but ensure you follow the modest dress code (shoulders and knees covered) if you plan on visiting the nearby Shrine of the Virgin of the Rosary. Essential items include a wide-brimmed hat, polarized sunglasses, and a high-SPF sunscreen, as there is very little shade in the open ruins. You should also bring a reusable water bottle, as there are numerous ancient "nasoni" (public fountains) throughout the site where you can refill for free with cold, drinkable water. Finally, pack a small portable power bank; between navigating with the official Pompeii app and taking hundreds of photos of frescoes, your phone battery will drain much faster than usual in the Italian heat.