Disclosed is a resin garnish attached to a door frame forming the window frame of a vehicle door. The door frame is provided with a frame unit including an attachment unit having an insertion hole, and a weatherstrip fastened to said frame unit using a clip. The clip is inserted through the weatherstrip and the insertion hole to fasten the weatherstrip to the frame unit by engaging with the frame unit. The garnish is provided with a garnish body forming a design surface facing out of the vehicle, and an engaging protrusion unit arranged so as to protrude from the garnish body. In order to attach the garnish to the frame unit, the engaging protrusion unit is configured such that said unit, in a state inserted in the insertion hole, engages with an engaging claw provided on the clip.