Board Thread:Speculation House/@comment-69.66.169.227-20130802171349/@comment-10390252-20130917082630

@ XDex,

I've already theorised that Pyrrha's shield might be made of some kind of exotic synthetic compound to allow it to handle smashing through trees the way it did in episode 5. A lot of these issues can be hand-waved away by invoking aura interacting with Dust but there is still lots of evidence to suggest that Vytal is many generations ahead of Earth in terms of materials science. They can clearly make highly-tensile materials that are still quite light.

So, yes, it is entirely possible that Crescent Rose's blade is made of an exotic synthetic but so is the shaft (which, remember, as to also act as a shock absorber for the high-calibre sniper rifle).