Whew! Those are quite the claims. In terms of the hybrid texture, 15 definitely feel hybrid to me. Its definitely more "wet" than a normal powder but not quite a cream shadow texture. I apply with my fingers and just one dip in the pot is enough to cover my whole lid in very intense pigment. I can definitely see how these are more dimensional than just a solo color. Mine comes out as a smokey gold bronze on my lid that can easily be toned down or amped up.
Now, onto the really crazy claims: 24 hour wear, crease-proof, flake-proof, waterproof, and sweat-proof. I have to say, I've never tested the 24 hour thing. The longest I would wear an eyeshadow would be 16 hours but this does last that long! And that is with no primer. They are definitely crease-proof, I never experience any. I've never had an eyeshadow flake on me and this one was no exception. I have swam in it and it lasted through all 30 minutes of laps. I've also worn it to work on Saturday (where I am usually a sweaty mess) and it lasted the whole time. So it seems, at least for me, that this shadow really does live up to it's claims.
The packaging is a glass put with a little stopper and a black screw top lid. Its substantial and sturdy while being very clean and modern looking. I wouldn't mind displaying this on my vanity. 15 was supposed to be a limited edition color last Holiday but is now part of the permanent line. I purchased mine in June I believe.
These retail for $32 and honestly, you need one. Probably more than one. I already have a few others on my wishlist. I would say you need all of the colors but several come over very white and frosty.