Undertow is the first full length studio album by Tool, released in 1993 including singles 4 Degrees & Prison Sexpressed

The band's follow up to Opiate, Undertow displays Tool at their finest. You'll find a strong water theme throughout with awesome riffs and heavy bass. If you can stomach some of the disturbing lyrics in songs such as "Prison Sex", which is an eye-opener to the loss of innocence, this one comes recommended for the talent that Tool is.