For the purposes of the classification of tracksuits in CN codes 6112 or 6211, where the garment intended to cover the upper part of the body has a complete opening at the front this must be fastened by means of a zip-fastener, press-studs or velcro.
Where, however, the opening at the front is only partial, it may also be fastened by any type of buttons, provided that the opening is no longer than one third of the length of the garment measured from the neckline.