Outside Clothes or Street Clothes refers to the concept of having "outside clothes" that you wear throughout the day while outside the house, which should be changed when you get home, particularly before sitting down or lying in bed, as to avoid getting dirt and germs on your furniture. Inside clothes are often said to be loungewear, like pajamas and sweats.
The concept of outside clothes was popularized online starting in 2023 on sites like X and TikTok. Outside clothes became the increasing subject of memes and discourse between then and 2026, with some finding the idea pointless and unnecessary and some offering examples of why it makes sense.