While there is no legal "ban" on flip-flops on the streets of Florence in 2026, wearing them is considered a major cultural faux pas and is highly impractical. In Italian culture, the concept of bella figura (presenting a good image) means that flip-flops are strictly reserved for the beach or the pool. Walking through the historic center in plastic thong sandals will immediately mark you as a tourist and may even result in lower-quality service at traditional trattorias. More importantly, Florence is a city of uneven cobblestones and narrow sidewalks; flip-flops provide no arch support or protection, making them a recipe for foot pain or injury during a long day of sightseeing. Additionally, many religious sites, including the Duomo (Cattedrale di Santa Maria del Fiore), have strict dress codes. While the focus is usually on covering shoulders and knees, security can sometimes turn away visitors in overly casual footwear. Opt for a pair of stylish leather sandals or clean white sneakers instead to blend in with the locals.