Board Thread:Theories and Speculation/@comment-27075290-20160214063402/@comment-4912646-20160216061746

Totally agree with the part about the unzipped jacket and cape, but it still leaves the problem of why Naruto's first cloak in Boruto and his only cloak in The Last look so radically different. It's possible that he was just using his first form ("Nine-Tails Chakra Mode") on both occasions and that's what it looks like now that he's got full Kurama. But then it doesn't make any sense for him to use the weaker cloak against all these powerful Ōtsutsuki, and use the stronger one against Shin of all people.

I guess there actually is some precedent for that sort of thing in this series though. After he unlocked it, Sasuke completely neglected his Susanoo's third (armoured) form in favour of its second bow-wielding form. Probably just because Kishimoto liked the design better, I guess.