After an eternity of waiting for Oakley's Small vault, and they finally deciding to discontinue it, I decided to just get the Large one before it too gets discontinued.
So it finally arrived yesterday, and the material is no different to what Oakley uses for the frame cases.

It was actually made to fit certain Oakley watches, but as we all know nobody buys those.
So soon after others discovered the little secret that was the Small vault making them extremely difficult to get.
Anyway, the Large vault as the name implies fits large watches.
with the PO 45.5mm, there is basically no movement at all when inside.
something smaller at 40mm, and there is noticeable case movement when its shaken, though no one in their right mind would do this often.

It's probably abit pricey for what it is, then again there really is nothing like this on the market.