Abstract: An orthopedic boot liner is provided that is adapted to be inserted into an orthopedic boot to absorb moisture from the foot of a wearer therein. The boot liner comprises a cushioned, moisture absorbent material that absorbs moisture and also improves comfort while wearing an orthopedic boot, such as a walker boot. The liner comprises a body portion adapted to form along the sole of a wearer's foot, the body portion having an upper surface and an underside surface. The heel end of the liner has a curved edge with an upstanding lip extending upwards therefrom to support the wearer's heel, while the mid-body portion of the liner comprises a pair of lateral wings.