Unfortunately, Sony does not include a nice carrying case for their digital recorders, which I think is lame.

This is a very functional protective carrying case for the PSP go

The interior space is about 5.5"x3.0"x1.0".This is a really high quality plush carrying case with three layers of protection: an outside layer of waterproof neoprene (even though prolonged exposure to water/rain will eventually soak through the seams and zipper), a middle layer of foam, and a shock-absorbing interior that is lined with soft raised round bumps that feels like a rubbery version of bubble wrap.