Bogstrok Scale Cloak

The Bogstrok Scale Cloak is a cloak most often sought after by warriors and feral druids. For the tanking druid this item provides 1490 armor in dire bear form. For warriors the +16 defense rating increases their block, dodge, and parry ratings.

Source
This item drops from Rokmar the Crackler in The Slave Pens wing of Coilfang Reservoir.