Within the same market, type‑based segmentation isolates functional design as the primary differentiator. Rigid orthoses, typically fabricated from high‑density polymers, deliver maximal motion restriction and dominate the post‑surgical and deformity sub‑markets; their higher manufacturing cost aligns with the 35 % and 20 % application shares respectively. Semi‑rigid (semi‑flexible) braces, incorporating aluminum frames with neoprene liners, balance support and comfort, making them the preferred choice for chronic low‑back pain patients, thereby underpinning the 30 % market slice. Flexible or pneumatic orthoses, constructed from elastic fabrics or air‑filled bladders, address sports‑related injuries where mobility is essential; their lower price point and rapid turnover correspond to the 15 % application segment. Custom‑fabricated devices, regardless of rigidity, are priced above off‑the‑shelf equivalents and are allocated primarily to the deformity and post‑surgical categories, while off‑the‑shelf models serve the chronic pain and sports cohorts. This market taxonomy elucidates how design attributes map to revenue distribution across the Lumbosacral Orthosis Brace market.