A combined fastening device to be used in elements designed for lacing, such as pieces of clothing, footwear, and similar items. The device includes a main frame substantially filiform with a first end, to which a clamping part is assembled and fixed, and a second ring-shaped end, which is fastened to the clamping part. The device provides users with the possibility to customize and decorate their footwear, and at the same time prevents the accidents and problems caused by conventional shoelaces, preserving the users' physical wellbeing.