Easton's Bible Dictionary (1897)
A robe of rich colours fabricated at Babylon, and hence of great value (Josh. 7:21).
Smith's Bible Dictionary (1863)
literally “robe of Shinar,” (Joshua 7:21) an ample robe, probably made of the skin or fur of an animal, comp. (Genesis 25:25) and ornamented with embroidery or perhaps a variegated garment with figures inwoven in the fashion for which the Babylonians were celebrated.
Schaff's Bible Dictionary
BABYLO'NISH GAR'MENT, THE (literally, "garment of Shiar "), which Achan stole at the destruction of Jericho, Josh 7:21, is described by Josephus as "a royal mantle all woven with gold." But no accurate description is possible. Babylon was famous for the products of the loom.