A die molded part of a glass run connects an upper part of a second extrusion molded part closer to a pillar with an end of a first extrusion molded part closer to a roof. An insert panel is embedded in the die molded part with a concave shaped part of the insert panel exposed toward an exterior of an automobile. An outer garnish couples to the die molded part from the exterior of the automobile by fitting a convex shaped part of the outer garnish into the concave shaped part of the insert panel with a second anchoring part on the convex shaped part engaging with a first anchoring part on the concave shaped part. The concave shaped part includes a through hole which penetrates the insert panel in an inner-cabin and outer-cabin direction. A lid closes an inner-cabin side of the through hole.