1. [Breathable Large Mesh Fabric]The knee brace features a durable OK cloth fabric and honeycomb design for maximum shock absorption and optimal ventilation. It supports your legs thoroughly and keeps your knees dry with many air holes. 2. [Super resilience]Three powerful rebound carbon steel springs provide 20kg/44lb power, allowing you to lift your knees easier when bending or squatting both legs, providing a noticeable boost when lifting heavy objects. 3. [Relieve Knee Pain]Joint support knee pads work to support your thighs and calves, effectively reducing the pressure on your knees. Suitable for adult women, men and elders. 4. [Adjustable& Perfect Fit]Great interlocking design and practical stickers a good fit. The knee booster stabilizes your knees and legs without rolling down. One size fits all design lets you easily wear around bare knees or over pants.