I bought this bag for my Casio WK-3000 Professional Series 76 Key Digital Recording Studio Styled Keyboard, and it was about several inches away from zipping up.  After about 5 minutes, I gave up, and returned it.  I later had to settle for the 88-note version, which is obviously bigger than what I need, but at least it'll fit.

Pros:
- Not expensive compared to other cases I've seen (bought mine here for $36.99)
- Extremely light-weight
- Should protect against wind/rain.
- The customer service (my return transaction) from J&R Music and Computer World went pretty smoothly.

Cons:
- Misleading representation of product (i.e., it may NOT fit your keyboard because it is so tightly designed)
- It does not seem to protect against impact/drops.

Overall, I wish I didn't have to buy the bigger version of this for my keyboard, but at least I have what I need now.  This is definitely an improvement from carrying my keyboard fully exposed.  You don't want your hands to accidentally rip off your keys as you carry it, and you want to have some confidence when carrying it outside with the weather.
I bought this bag for my Casio WK-3000 Professional Series 76 Key Digital Recording Studio Styled Keyboard, and it was about several inches away from zipping up. After about 5 minutes, I gave up, and returned it. I later had to settle for the 88-note version, which is obviously bigger than what I need, but at least it'll fit. Pros:
- Not expensive compared to other cases I've seen (bought mine here for $36. 99)
- Extremely light-weight
- Should protect against wind/rain. - The customer service (my return transaction) from J&R Music and Computer World went pretty smoothly. Cons:
- Misleading representation of product (i. e., it may NOT fit your keyboard because it is so tightly designed)
- It does not seem to protect against impact/drops. Overall, I wish I didn't have to buy the bigger version of this for my keyboard, but at least I have what I need now. This is definitely an improvement from carrying my keyboard fully exposed. You don't want your hands to accidentally rip off your keys as you carry it, and you want to have some confidence when carrying it outside with the weather.