AVivoPur's Pur North shoe inserts are specifically designed with strong, therapeutic magnets to encourage relaxation and physical comfort from head to toe. A solid magnetic field that is created by the magnetic shoe inserts penetrated the entirety of the foot. This magnetic field should help improve circulation and physical endurance. Our Pur-North Magnetic field may also relieve or reduce aches and pains that are caused by standing and walking for long periods of time. To learn more about how magnetic therapy works, or what type of magnetic shoe inserts to purchase, visit our educational links!