- 2 x LP
- Volcano, Tool Dissectional
Undertow is the debut full-length studio album by American rock band Tool, released in 1993. According to Allmusic, Undertow helped heavy metal music and progressive rock remain prominent as a mainstream musical style, and allowed several later bands to break through to the mainstream. It was released at a time when grunge was at the height of its popularity, and pop punk was slowly beginning to gather mainstream attention.