NOVELTY - A pressure vessel comprises a shell including greater than or equal to2 fiber bundle layers which are formed by resin impregnating fiber bundles and at least one shape correction member arranged between the fiber bundle layers at each domed end portion.    USE - For containing compressed natural gas (CNG) or liquefied natural gas (LNG).    ADVANTAGE - The inventive vessel provides a pressure vessel in which the fibers that range from the portion adjacent to the boss of the pressure vessel to the shoulder portion which contribute little to enhancing the strength of the pressure vessel in the axial direction are reduced and the amount of fibers required for ensuring the same pressure resistance are reduced even if the fiber bundles wound at the domed end portion are arranged to pass on the boss.    DETAILED DESCRIPTION - A pressure vessel (11) comprises an airtight liner (15); and a shell (16) made of fiber reinforced plastic and formed by curing resin impregnated fiber bundles wound outside of the liner, where the pressure vessel has a cylindrical portion (12), a domed end portion (13) on each end of the cylindrical portion and a boss (14) provided at the center of each domed end portion, where the shell includes greater than or equal to2 fiber bundle layers which are formed by the resin impregnating fiber bundles and at least one shape correction member arranged between the fiber bundle layers at each domed end portion. INDEPENDENT CLAIMS are also included for:    (1) a hydrogen storage tank comprising the components; and    (2) a method for manufacturing a pressure vessel having a cylindrical portion, a domed end portion on each end of the cylindrical portion and a boss provided at the center of the domed end portion, where resin impregnated fiber bundles are wound outside of an airtight liner by filament winding, comprising fixing the liner at a rotation support portion of a filament winding apparatus to rotate integrally, performing the filament winding while an annular shape correction member for adjusting a shape of a fiber bundle layer formed at the domed end portion is prepared at a saving position, which does not interfere the filament winding, between the rotation support portion and the liner, moving the shape correction member prepared at the saving position to contact the fiber bundle layer wound by then in the mid course of winding the fiber bundles, and continuing the filament winding.    DESCRIPTION OF DRAWING(S) - The figure is a cross-sectional view of a pressure vessel.    Pressure vessel (11)    Cylindrical portion (12)    Domed end portion (13)    Boss (14)    Airtight liner (15)    Shell (16)