Ok so forget the previous surf bags or you may be disappointed. This is the large version holding 40 litres. The left side pockets have a waterproof lining allowing you to stow wet surf tools etc. There's many pockets for your gear. The main compartment has a wet bag which you can put your wet gear in, its quite large and has a clip attached so you can close the bag. All in all its just like any other bag with the addition of the wet pockets. The ironic thing is, the bag isn't waterproof!
The design is also very bland, needs a bit more o factor! Not a bad bag though!