Board Thread:Naruto Discussions/@comment-26508646-20150704031517/@comment-24808887-20150709231847

LegionZero wrote: Naruto lost all the chakra from the other 8 beasts in his last fight with Sasuke which is why he hasn't used that cloak since. Not only this is just assumption(popular tho), but at the time it is if accepted as given creates inconsistency with Sasuke's and Hagoromo's statements about 8 beasts and Naruto. So atm this guess has no basis to stand on.