Board Thread:Episode Discussions/@comment-1181222-20170823100207/@comment-25122992-20170825144629

Well, actually, Naruto's version 2 did stengthen his skin, and this chakra mode is supposed to be more powerful than it. Moreover, it has always been the chakra cloak Naruto used to defend himself and his allies (during FSWW) even against large-scale pulverising attacks like Ten-Tails Tenpenchii. Plus, as it was already stated, he uses SPSM, a more advanced version of SM, while even the latter enhances the durability of the body (as seen by Naruto surviving a fall from a cliff during SM training without any scratch at all and breaking Pain's receiver by merely blocking it with an open palm).