The GRS Fento Max offers extra protection and ergonomics due to its size The Ergonomic Wedge ensures proper pressure distribution over the lower leg, preventing knee and back pain. It has an improved fit that over time conforms to the shape of your own knee for even more comfort, flexibility and ergonomics. The GRS Fento Max is hugely hard-wearing and has a wide and flat surface for added stability. The entire product is completely water-repellent. This knee pad weighs only 500 grams. The wide elastic straps ensure that it does not pinch in the hollow of the knee. Because the GRS Fento Max is longer in size compared to the GRS Fento Original, and they offer even more protection and ergonomics.