An orthopaedic device is described. The orthopaedic device has a harness provided with a backpiece portion adapted to be arranged on the back of a user and at least one shoulder strap associated with the backpiece portion and adapted to wrap a respective shoulder of the user. The orthopaedic device also has a support pad adapted to be associated with the at least one shoulder strap and intended to be housed in a respective axillary cavity of the user for keeping the shoulder joint in a preset physiological position. The support pad has a shape matching the shape of the axillary cavity. The orthopaedic device is capable of keeping also the spinal column and the neck in a preset physiological position.