Blue Soft Skin Case + Screen Protector + Armband + Smart Cord Wrap for SanDisk SDMX22 Sansa Clip Zip 4GB 8GB MP3 Player
Case fits perfect, no complaints there.  The arm band is extremely cheap and doesn't slip through the case though...the only way to attach the arm band to the player is by clipping onto it with the belt-style clip that is part of the MP3 player.  The case and armband really have nothing to do with each other in this case.  Also, the arm band isn't very long.  I have skinny arms, and it barely fits around my upper arm.  Anyone with biceps shouldn't buy this.