The pre-fabricated “Original” California Soft Spinal Orthosis has been designed to alleviate pain, limit undesirable motion and provide circumferential pressure to stabilise the spine. The basic system is modular, comprising rigid components inside a soft and comfortable interface. Indicated for spinal problems between L3 and S1. The orthosis can be effective for more superior spinal problems between T7 and L3, by adding either an anterior, posterior, or combined upper thoracic component. All components can be retrofitted and are modular and interchangeable. Velcro attachable lateral stabilising supports are also available when more control of lateral flexion and rotation is needed. The anterior and posterior ABS modular components can be heated and flared to provide a more intimate fit. This device can be upgraded to a TLSO using the California Ant Thoracic Extension.