SWTOR–Gree armor not available to companions will be fixed soon
Joveth Gonzalez went on the forums today to inform us that companions will be able to wear the Gree armor in a future patch.
Companions Cannot Wear Gree Armor | 02.20.2013, 04:25 PM
We’ve updated the Known Issues to reflect that this is, indeed, not working as designed. Currently, companions are unable to equip gear that has a Reputation requirement, but this will be resolved in a future patch. Once this issue is resolved, you’ll be able to use the gear as intended on your companions.
Joveth Gonzalez | Online Community Manager