Do you have a rx for braces, and a professional you are working with who will order and fit them for you? I used Hanger for mine. They are popular here in New England, not sure if they are where you live.
Looking online will give you an idea of whats available, other than custom--which in the place I went, are mainly a hard plastic brace.
Most of the carbon fiber braces I found online need to be ordered and fitted by a licensed bracing professional.