A garment including: fabric configured to conform to a body portion of a wearer; at least one front-transverse segmental marker visible on a front exterior surface of the garment in use and extending parallel to a transverse axis of the body portion; at least one rear-transverse segmental marker visible on a rear exterior surface of the garment in use and extending parallel to the transverse axis of the body portion; at least one front-longitudinal segmental marker visible on a front exterior surface of the garment in use and extending parallel to a longitudinal axis of the body portion; at least one rear-longitudinal segmental marker visible on a rear exterior surface of the garment in use and extending parallel to the longitudinal axis of the body portion; and at least one side-longitudinal segmental marker visible on each side exterior surface of the garment in use and extending parallel to the longitudinal axis of the body portion.