Board Thread:Naruto Discussions/@comment-43317375-20200727034617/@comment-31121580-20200728094512

likely unique to Kurama due to the fact that kurama himself is over 50% of the Juubi charkra a Jinchuriki of the 10 tail also gets a cloak so this is probably the reason Kurama is the only one that gives its user a Cloak. 50% Kurama = 5 Tail beast 100% Kurama > all other tail beast.

it has nothing to do with the seal that was use because Kurama also has a V2 and V1 and even Full Bijuu Form used on Nagato.