The good
- holds bottles nice and securely, even stainless bottles don't rattle around;
- light weight - 38g;
- strong;
- cheap - was $5.99 but can be found online for $8-9.99.
The bad
It looks like carbon fibre but it isn't. Its not bad that it isn't carbon fibre, its bad that someone went through the effort to try to make it look like carbon fibre.