Twill Cloak

Dropped by 2

• Crimson Hammersmith level 60 0.1% 11120
• Shatterspear Drummer level 58 0% 11196

Dropped by, from a shared table 40+

• Barkskin Den Watcher level 62 61346
• Barkskin Ursa level 62 61342
• Barkskin Windtalker level 62 61347
• Disrupted Arcane Elemental level 63 61949
• Dreadlord level 62 8716
• Elder Growlheart level 62 61348
• Emeraldon Boughguard level 62 12474
• Flamewaker Elite level 62 11664
• Flesh Hunter level 62 15335
• Foreman Jerris level 62 1843
• General Marcus Jonathan level 62 466
• Grand Inquisitor Isillien level 63 1840
• Highlord Taelan Fordring level 63 1842
• Ima'ghaol, Herald of Desolation level 63 62606
• Infernal Destroyer level 63 62017
• Infinite Rift-Lord level 62 65105
• Ivus the Forest Lord level 63 13419
• Jademir Boughguard level 62 5320
• Korrak the Bloodrager level 62 12159
• Lord Xanvarak level 63 61609
• Molten Destroyer level 63 11659
• Molten Giant level 62 11658
• Nathanos Blightcaller level 62 11878
• Onyxian Warder level 62 12129
• Relentless Felguard level 62 61351
• Sanctum Supressor level 63 61212
• Sanctum Wyrm level 63 60744
• Scalebane Royal Guard level 62 1050
• Scarlet High Clerist level 63 1839
• Shadowbane Alpha level 63 61191
• Speaker Gan'hota level 63 61361
• Spectral Worker level 62 61934
• The Husk level 62 1851
• Tidelord Rrurgaz level 62 16072
• Verdantine Boughguard level 62 12477
• Warbringer Overseer level 63 62019
• Warlord Hanzento level 63 61360
• Winterax Berserker level 62 10984
• Withermaw Shaman level 62 62871
• Wyrmkin Firebrand level 62 1049

Only the first 40 are listed.

Found in 5

• Solid Chest 2.1% 153454
• Solid Chest 1.7% 153451
• Solid Chest 1.7% 153453
• Supply Crate 1.5% 176224
• Large Solid Chest 0% 153462