Church choir attire (4)

I believe the answer is:
robe
(Other definitions for robe that I've seen before include "judge's garment" , "Christening garment" , "Old cloak for Boer" , "Ceremonial garb" , "Loose or formal garment" .)
I believe the answer is:
robe
(Other definitions for robe that I've seen before include "judge's garment" , "Christening garment" , "Old cloak for Boer" , "Ceremonial garb" , "Loose or formal garment" .)