2,729 leather armor items
The Forever catalog holds 2,729 leather armor items, topping out at item level 98 with Duskwraith Belt, Duskwraith Bracers, Duskwraith Breastplate. Every armor piece in the World of Warcraft: Forever catalog, the Classic Era pieces and the ones Forever adds: cloth, leather, mail, and plate across every slot, plus shields and off-hands. Sorted by item level; filter by armor type. Each item page holds the tooltip, the vendor value, and the auction house price on every market once scans arrive.
By quality: 943 uncommon, 799 rare, 724 epic, 189 common, 74 poor. Item levels run from 1 to 98, for characters from level 1 to 60. 4 require a level above the cap of 60: leftovers from later expansions that the game still carries, listed here because they are in its tables. 757 bind when picked up and never reach the auction house; 1,972 can be listed.
The highest item levels here: Duskwraith Belt (98), Duskwraith Bracers (98), Duskwraith Breastplate (98), Duskwraith Chestguard (98).
Professions make 357 of them: Leatherworking (352), Engineering (5). The rest drop, are sold by vendors, or come from quests.
Source: World of Warcraft: Forever game data and Blizzard's Game Data API. Updated with each game build.