A rubber bubble mat is a flexible mat made of rubber that is used for a variety of purposes. It is often used in commercial settings as an anti-fatigue mat for workers who are standing for long periods of time. The bubble-like design of the mat helps to cushion feet and provide comfort and support. It is also often used in garages, as a flooring option where you may spend prolonged hours standing, or as a protective mat in playgrounds and other recreational areas.