This is my second relief hand. My first one still works great but wanted the waterproof one. I have had severe motion sickness for years. I can not ride as a passenger in a car even in the front seat, travel by airplane, boat or even float in a pool without getting nauseous. I have tried over the counter motion sickness medications and the elastic wristbands for the pressure points on the inside of the wrists and they did not work. Finally found the relief band and it works great. Would highly recommend.