Youth subculture is a youth-based subculture with distinct styles, behaviors, and interests. Youth subcultures offer participants an identity outside of that ascribed by social institutions such as family, work, home and school. Youth subcultures that show a systematic hostility to the dominant culture are sometimes described as countercultures.

Street style is fashion that is considered to have emerged not from studios, but from the population at large. Street fashion is generally associated with youth culture, and is most often seen in major urban centers. Magazines and newspapers commonly feature candid photographs of individuals wearing urban, stylish clothing. Mainstream fashion often appropriates street fashion trends as influences. Most major youth subcultures have had an associated street fashion. Street style is different all around the globe.