Yes, flip flops (locally called "slippers") are the unofficial national footwear of Singapore in 2026 due to the year-round humidity and frequent rain. A supportive peer "etiquette" guide: you will see people wearing them in malls, hawker centers, and even on public transit. However, there is a clear social boundary—flip flops are considered too casual for many professional settings, upscale restaurants, or nightclubs. If you are visiting a religious site, like a temple or mosque, you must remove your footwear entirely. While Singaporeans value comfort, if you're going to a "fine dining" establishment at Marina Bay Sands or a high-end bar in Clarke Quay, "slipper wearers" are often turned away at the door. For everyday life, though, a pair of Havaianas or local brand slippers is perfectly acceptable and highly practical for the tropical climate.