The ethereal robe of silk lists "only a student of the arcane arts can wear it" does that mean that invokers can wear it, or not, and its just incorrectly flagged?
As a comparison, I put the ice blue robes in there.

This object, an ethereal robe of silver silk can be referred to as 'ethereal robe silver silk'.
It is worth 5000 copper, and is of the 51st level of power.
It is made of silk and weighs 4 pounds 15 ounces.
A magical aura surrounds it.
Only a student of the arcane arts could use it.
*snip*

This object, ice blue colored robes can be referred to as 'ice blue robes'.
It is worth 10000 copper, and is of the 50th level of power.
It is made of cloth and weighs 4 pounds 15 ounces.
It radiates light.
A magical aura surrounds it.
Only an invoker could put it to use.
*snip*

Invokers can wear it.

valguarnera@carrionfields.com