AFO casting brims are pivotal in crafting ankle-foot orthoses, vital for foot and ankle support. They're formed by applying molding materials to the patient's lower limb, capturing anatomical contours precisely. This process ensures customized orthotic solutions, considering gait patterns, range of motion, and functional requirements. The brims serve as molds for fabricating final AFOs, aligning them accurately with the foot and ankle. They aid in pressure distribution, minimizing discomfort and skin issues. Casting brims are fundamental for tailored orthotic devices, promoting mobility, comfort, and improved quality of life.