Supportive garments, particularly maternity and post-maternity garments, are provided for support and promoting good posture of a wearer. The garment covers a wearer's torso and at least an upper portion of a wearer's thighs and includes a non-stretchable posterior panel positioned to extend transversely at least over an inter scapular upper back region of a wearer and longitudinally to a wearer's waistline, and connecting across a stretchable body portion that covers a lower torso and extends along a wearer's posterior sides to a shoulder region. An embodiment suitable as a maternity garment includes an abdominal portion having a more stretchable material than surrounding areas, whereas an abdominal portion in another embodiment suitable for post-maternity or slimming supportive wear is more compressive and incorporates cellulite-reducing fibers. A shoulder support portion extends laterally and upwardly from a lower portion of the posterior panel to the shoulder region.