I. Classification by Functional Positioning:

① Protective Knee Braces: Primarily used for sports protection, providing basic compression, warmth, and light support. Materials are mostly elastic fabrics; these are entry-level and mainstream products.

② Supportive Knee Braces: The core category. Features built-in spring support strips (single-sided, double-sided, ring-shaped), patellar openings/padded areas, and reinforced straps, effectively stabilizing the patella and reducing ligament pressure.

③ Rehabilitation and Fixation Knee Braces: Strongest medical application, usually with adjustable hinges to restrict range of motion, used for post-operative or severe injury rehabilitation. Requires a medical device registration certificate.

④ Warm Knee Braces: Primarily designed for the elderly, using wool, self-heating materials, etc., emphasizing comfort and heat therapy effects.

II. Classification by Material and Manufacturing Process:

① Basic Materials: Nylon, spandex, neoprene (diving material), cotton, CoolMax, etc., prioritizing breathability, sweat-wicking, skin-friendliness, and elasticity.

② Functional Materials: Far-infrared ceramic powder (heat generation), graphene (thermal conductivity, antibacterial), wool (warmth retention), gel pads (cushioning).

③ Support Structure: Medical-grade silicone strips, metal springs, memory foam pads, adjustable hinges.

III. Intelligent Trends:

① Integrated sensors monitor joint angles, activity levels, and pressure distribution.

② Combined with an app, it provides exercise guidance, posture correction, and rehabilitation progress tracking.

③ Integrated physiotherapy functions such as electrical pulses, heat therapy, and vibration massage.