Dealing in tautologies proves nothing: a jacket has to function as a jacket, otherwise it's something else. Surely the primary concern on this site is whether it's a good looking jacket or a bad looking jacket, otherwise why even bother discussing it?
And as regards my 'being unfair' comment; to simply say 'fashion jackets are for ponces', it's as I said: there are good looking, well-made jackets and poorly-made, awful-looking jackets; in this respect, their weight, size and utility is objectively immaterial. .
1) What I said is not tautological
2) Using the word tautologies when what was said is not tautological is a bit silly
3) Dodging the question doesn't prove a lot either
4) I never said 'fashion jackets are for ponces'. Those are your words. But now that you mention it..