Ive made an interesting observation regarding the tauren heritage set.
For them, their massive totem is in the cloak slot, unlike the highmountain tauren where their totem is part of the chest slot.
This totem in the cloak slot have an unique property. Shields and backsheated weapons are hidden when stowed. It doesnt show on the wowhead modelviewer, but Ive heard its the same effect for the refer a friend explorer’s set.
But I am wondering if its also the case for the vulpera heritage set, as it also comes with a cloak slot backpack.
The Dragonscale Backpack transmog from horrific visions sadly does not share the effect.