Sony A55 Case,Anti-Skid Anti-Knock Shockproof Armor Full Protective Skin Case Cover for Sony Walkman NW-A55HN A56HN A57HN A50 A55 A56 A57 (Gray)

...with a couple of issues. First, this case is advertised as coming with screen protectors - but it didn't. Second, the case material is quite inflexible. Whilst this is good with regards to the amount of protection it provides, unfortunately it means that pressing one button may actually operate the adjacent button too; I've found that using the power button also operates the volume-up button, though I'm hoping that with use, the case will "break in" a bit, and become a bit more flexible. Also, there's very little haptic feedback from the buttons; you can feel the click on the play button, not so much on the rewind and fast-forward buttons, and not at all on the volume and power buttons. Again, with continued use, this may change for the better. I have, though, noticed that putting the case on and off a few times has helped a bit with this issue. With regards to fitting, the case is extremely snug and secure, with no worries about it slipping off. Although there are "bumpers" on the sides of the case, they are noticeably absent on the corners, however, the case material is quite thick so should be able to handle impacts well. In the hand, the case is very smooth and not particularly grippy like some polymers; this isn't an issue for me, but if you prefer a more rubbery feel, look at the Inorlo case instead. Finally, there's no cover over the charging/data port; again, not a problem for me, but may be something to keep in mind, and if it's a deal breaker for you, the Inorlo case does have a protective flap to cover the port. If you intend to use a lanyard, expect to swear a lot while trying to fit it, though this is no different to any other case as Sony haven't made it an easy thing to attach without a case on the Walkman, let alone with one fitted. Overall, the Fat Bear is not a bad case at all, and it may well improve with use; I'm certainly not unhappy with my purchase, though at twice the price of its Inorlo competitor I would have hoped for something that required no breaking-in period and was perfect straight out of the box.