PURPOSE:To provide a weather strip which does not generate the rolling of a hollow seal, and the creeping-in of the seal surface to the lower side of the corner, and has an excellent sealing property, a small cross section same as in the conventional weather strip, and a simple structure. CONSTITUTION:This door weather strip is composed of a base 31 inserted to a door sash through a retainer 22; a hollow seal 32 formed integrally at the indoor side of the base 31, and contacted elastically with a downward slope 11 at the indoor side of a body panel opening edge 10; and a seal lip 33 formed integrally at the outdoor side of the base 31, and contacted elastically with the horizontal surface at the outdoor side of the body panel opening edge 10, and the lower surface at the indoor side of the hollow seal 32 is curved to the lower side in a convex form in order to allow to line contact at least in the longitudinal direction to the surface at the indoor side of the indoor side hook 23 of the retainer 22.
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