GLASS RUN

PROBLEM TO BE SOLVED: To prevent a lip curved on a window glass opening face from having an undulant shape when the lip abuts on the window glass to be flexurally deformed. SOLUTION: This glass run is connected to a door waist weather strip installed to a lower side part of a window glass opening part along a door waist and is installed to a door sash part constituting the window glass opening part. The glass run has the lip 26 curved in a nearly arc shape on the opening face of the window glass opening part, connected to a seal lip provided in the door waist weather strip, and slidably abutting on a vehicle-outside side face of the window glass along the circumferential direction of the window glass opening part. The lip 26 is formed with thin thickness parts 44 each hollowed in a prescribed shape, at prescribed intervals along the circumferential direction of the window glass opening part.