Does Sandisk provide oth accessories, such as rubber case with arm-band?

SanDisk doesn’t; those would be made by accessory manufacturing companies. However, sometimes the SanDisk (on-line) store will sell these items as well.

What’s particularly funny in this case is that if you go to the Accessories page of the SanDisk Store, you will see right at the top a picture of exactly what you are asking for; a Fuze+ case with armband. But if you scroll through all the offerings, you will not find one to buy.

Very strange. :confounded: