The Insulated World is the tenth studio album by Japanese heavy metal band Dir En Grey, released on September 26, 2018 via Firewall Div./SMEJ.

Remixed and remastered version of two pre-release singles "Utafumi" (詩踏み; "Treading On Poetry") and "Ningen o Kaburu" (人間を被る; "Wearing Human Skin") (with re-recorded vocals) are included exclusively for this release.

The bonus CD in limited deluxe edition included new version of three old songs including "Kigan" (鬼眼; "Demon Eyes", from Kisō), "The Deeper Vileness" (from The Marrow of a Bone) and "Wake" (理由; "Reason", from Macabre) as well as live recordings of "Fukai" (腐海; "Decayed Sea") "Ash" and "Beautiful Dirt", taken from performance at Shinkiba Studio Coast in Kōtō, Tokyo, Japan on June 30, 2018.

The bonus CD in first press limited edition only included "Kigan" as well as live recordings of "Fukai" and "Beautiful Dirt".

The bonus Blu-ray/DVD included live recordings taken from performances at Sendai Ginko Hall Izumity21 in Sendai, Miyagi Prefecture, Japan on April 28, 2018 and Shinkiba Studio Coast in Kōtō, Tokyo, Japan on April 30, 2018 (additional show), respectively.