A covering for a prosthetic leg. The prosthetic leg is nominally adjusted for optimal performance while the user is wearing shoes. The covering is configured to cosmetically resemble skin, and to shield some or all of the prosthetic leg mechanical components from outside view, thus making the prosthetic leg resemble a natural leg. The covering is designed to enable a prosthetic leg wearer to walk without shoes in a manner that makes it look as if the wearer is walking barefoot. To avoid prosthetic leg misadjustment problems such as hyperextended knee or prosthetic posterior lean, the covering is further configured with one or more internal inserts designed to adjust the height of the prosthetic foot to compensate for the missing elevation caused by the missing shoe. The device may be further configured with one or more fasteners to facilitate rapid application and removal.