DLO Jam Jacket Case for 20 GB iPod classic 4G (Cobalt Blue) Fits 4th generation 20 GB iPod and HP + iPod Play-through design allows access to all of iPods controls while iPod is in the case Texturized rubber sides provide great feel and a secure hold Opening at the top provides complete access to the headphone/remote jack and hold button Opening at the bottom provides access to the iPod's port connector