For the league phase and for play-out matches, UEFA provides the participating associations with special equipment and issues guidelines for their use at matches.
For the finals, the special equipment provided to each participating association must be used, to the exclusion of any similar items.
For the finals, only warm-up bibs provided by UEFA may be used during official training sessions, for the pre-match warm-ups held at the stadium and for the warm-up of substitute players during the match.