The biggest shock is when you take it out the packaging - it weighs next to nothing!
As the product description says, the case is polycarbonate (an impact and scratch resistant PLASTIC) which has been rubberised on the outside.
The cover is a soft fabric, rubberised with a felt layer on the inside, which helps to keep the Fire's screen clean.
The elastic strap is glued, but the bond is strong, so no complaints there. You can use this strap to insert your hand, while reading it. Or, it can be brought to the front to securely close the front flap on the case.
The fit is very snug - it fits like a glove.
It is really an outstanding case!
A good balance between weight and protection.
This is really good case for the traveller who is fairly careful. I'm not sure if it would withstand repeated drops onto concrete; I've dropped it a few times, accidentally, onto carpet, and it's been fine. (I wouldn't necessarily recommend this to clumsy people or small children, as i'm not sure it could withstand repeated abuse)