Read from the World of Warcraft client build files.
How Slippers of Borrowed Souls Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Slippers of Borrowed Souls suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 10 items nearest to Slippers of Borrowed Souls (item level 13) in item level among Armor > Cloth, Feet slot, from item level 8 to 20.
Blizzard numbers items as they are created, so the named items next to ID 240367 (240362 to 240372) were usually added in the same batch as Slippers of Borrowed Souls: the same quest line, zone, vendor or reward set.