A garment for the lower body, the garment comprising: at least one upper belt portion; a portion forming a seat; wherein the at least one upper belt portion has a stepped annular curvilinear shape that extends around a central axis of the garment and comprises at least a first side portion and a second side portion positioned in an axially upper location about the central axis, the first side portion and the second side portion each being designed to fit above an associated hip of a wearer of the garment, and a frontal portion positioned in an axially lower location about the central axis, in which the frontal portion is designed to extend generally under an abdomen of the wearer, wherein the portions of the belt portion have different elasticity constants so that the first side portion and the second side portion exert a radial compressive force on the wearer which is lower than the compressive force exerted by the frontal portion of the at least one upper belt portion; and a lower portion forming a first leg and a second leg which are connected to the portion forming the seat, wherein the portion forming the seat comprises a first supporting band, and a second supporting band which are interposed axially between the portion forming the seat and the first leg and the second leg, respectively, the first supporting band and the second supporting band designed to be arranged under the buttocks of the wearer to exert a radial tightening force substantially over upper thighs of the wearer to support the first leg and second leg of the garment, and wherein each of the first supporting band and the second supporting band forms overall a half-ring that is designed to be arranged under the buttocks of the wearer to extend around the a back of the associated leg of the wearer. at least one upper belt portion; a portion forming a seat; wherein the at least one upper belt portion has a stepped annular curvilinear shape that extends around a central axis of the garment and comprises at least a first side portion and a second side portion positioned in an axially upper location about the central axis, the first side portion and the second side portion each being designed to fit above an associated hip of a wearer of the garment, and a frontal portion positioned in an axially lower location about the central axis, in which the frontal portion is designed to extend generally under an abdomen of the wearer, wherein the portions of the belt portion have different elasticity constants so that the first side portion and the second side portion exert a radial compressive force on the wearer which is lower than the compressive force exerted by the frontal portion of the at least one upper belt portion; and a stepped annular curvilinear shape that extends around a central axis of the garment and comprises at least a first side portion and a second side portion positioned in an axially upper location about the central axis, the first side portion and the second side portion each being designed to fit above an associated hip of a wearer of the garment, and a frontal portion positioned in an axially lower location about the central axis, in which the frontal portion is designed to extend generally under an abdomen of the wearer, wherein the portions of the belt portion have different elasticity constants so that the first side portion and the second side portion exert a radial compressive force on the wearer which is lower than the compressive force exerted by the frontal portion of the at least one upper belt portion; and a lower portion forming a first leg and a second leg which are connected to the portion forming the seat, wherein the portion forming the seat comprises a first supporting band, and a second supporting band which are interposed axially between the portion forming the seat and the first leg and the second leg, respectively, the first supporting band and the second supporting band designed to be arranged under the buttocks of the wearer to exert a radial tightening force substantially over upper thighs of the wearer to support the first leg and second leg of the garment, and wherein each of the first supporting band and the second supporting band forms overall a half-ring that is designed to be arranged under the buttocks of the wearer to extend around the a back of the associated leg of the wearer. a first supporting band, and a second supporting band which are interposed axially between the portion forming the seat and the first leg and the second leg, respectively, the first supporting band and the second supporting band designed to be arranged under the buttocks of the wearer to exert a radial tightening force substantially over upper thighs of the wearer to support the first leg and second leg of the garment, and wherein each of the first supporting band and the second supporting band forms overall a half-ring that is designed to be arranged under the buttocks of the wearer to extend around the a back of the associated leg of the wearer.