Which punk subgenre is the band Crass closely associated with?

Crass is closely associated with anarcho-punk.

Formed in Epping, Essex, in 1977, Crass helped define anarcho-punk as both a musical style and a political movement. The band combined abrasive punk with anarchist ideas, pacifism, feminism, animal rights, anti-war activism, and opposition to consumer culture.

Crass also expanded punk's DIY ethic beyond music. The collective produced its own records, artwork, pamphlets, films, and political campaigns, often using stark black-and-white imagery created by Gee Vaucher. Their base at Dial House became an important meeting place for artists and activists.

Anarcho-punk is sometimes confused with crust punk or hardcore punk, but the label primarily describes a political and cultural orientation rather than one fixed sound. Crass's influence can be heard in bands such as Conflict, Flux of Pink Indians, and Chumbawamba, as well as in later activist-oriented punk scenes.