2021 joint support knee pads protection breathable powerful rebound spring force mountaineering sports old cold protector, Black;gray

features: breathable the support knee pad adopts breathable fabric to provide you comfortable wearing experience. the support knee pad can be long time used without uncomfortable feeling. adjustable the support knee pads can be adjusted according to your leg size y. the magic sticker can tightly fixe the support knee pad on you knee spring supporter the support knee pad is supported by the metal spring, which can effectively reduce the pressure on your knee. it is perfect for climbing, hiking size: 30*10*9cm/11.79*3.93*3.54inch(l*w*h)