Segmentation by types classifies calf prostheses into modular, custom‑molded, adjustable, and hybrid systems, each addressing distinct clinical and biomechanical requirements. Modular prostheses, characterized by interchangeable components such as carbon‑fiber shells and silicone liners, dominate the market due to their cost‑effectiveness and ease of maintenance, contributing approximately 45 % of sales. Custom‑molded devices, fabricated from patient‑specific casts or 3D‑printed polymers, capture roughly 30 % of revenue, reflecting their superior fit and load distribution for complex residual limb geometries. Adjustable prostheses, featuring telescopic shafts and interchangeable foot modules, hold a 15 % share, appealing to growing pediatric and athletic populations that demand size adaptability. Hybrid systems, which integrate modular frameworks with custom‑molded interfaces, account for the remaining 10 %, representing a niche driven by high‑performance requirements in elite sports and specialized veterinary applications. This typology clarifies how product differentiation influences overall market dynamics.