A garment for wear by a person and a garment system of garments includes bands and elastic portions to apply tension and support to muscle groups when the garment is worn by a wearer. The garments include a vest with crossed back bands within the garment that are selectively fastenable to the exterior of the vest to exert tension from the shoulders to the hips. Also included is a cape with shoulder straps and hip straps to apply further tension when attached to the vest or another garment. A shirt includes a central back panel and one or more shoulder straps, the central panel extending to side straps at the hip. Shorts with a spiral strap apply tension from the body core to the leg of the wearer. Shirts and tops for women including for maternity wear include support specific to a woman's body. Some of the shirts, tops, shorts and vests have wearer adjustable straps to vary the tension applied by the straps. Auxiliary straps with fasteners are available for applying additional tension when mounted on the garments.