This Naruto kunst van een fan contains
blote benen, panty's, strakke broek, nauwsluitend, panty, nauwsluitende broek, and nauwsluitende.
There might also be
kousen, slang, hosiery, hose, zonnebril, donkere bril, tinten, panty's, and maillots.
I guess the animators decided to make their own version of a Naruto/Sasuke fight. It's completely not canon and the first half of it is basically flashbacks...