Cannot Find Mariner's Armor in DMG Compendium

I own the DM bundle, and this should be in the DMG.  I cannot find it using any search criteria.  Help is appreciated. Armor, uncommon While wearing this armor, you have a swimming speed equal to your walking speed. In addition, whenever you start your turn underwater with 0 hit points, the armor causes you to rise 60 feet toward the surface. The armor is decorated with fish and she ll motifs. Notes: Set: Innate Speed (Swimming), Movement, Exploration, Combat, Warding

The Dungeon Master Guide has not been released yet on Roll20. The DM's Bundle includes: Player’s Handbook Monster Manual Essentials Kit Devs have said they intend to complete the back catalog of WoTC titles this year inlcuding the DMG, but there is currently no additional information.

Loren, Thx.