It said "Rust
hooded cloak closed with a metal clasp" which means Reddish-Brown for his Pre-Lothlorien Cloak.
Can see it in these Images :
Grey Cloak is the Fellowship Cloak which he and rest gotten at Lothlorien.
2016 COSTUMES PLANNED
50 Attack on Titan
a few (Saint Seiya) Episode G: Assassin
and a Brand New Star Wars
Biker Scout Armor!