All incarnations of the Flash can move, think, and react at light speeds as well as having superhuman endurance that allows them to run incredible distances. Some, notably later versions, can vibrate so fast that they can pass through walls in a process called quantum tunneling, travel through time and can also lend and borrow speed. Speedsters can also heal more rapidly than an average human. In addition, most incarnations have an invisible aura around their respective bodies that protects them from air friction and the kinetic effects of their powers.