iGadgitz Reflective Anti-Slip Pink Sports Jogging Gym Armband for Sony Walkman NWZ-E585 & NWZ-E384 With Key Slot Not Suitable for any other Sony Walkman MP3 Player. Please note that this armband will not fit your phone if it is in a case or cover. iGadgitz custom-made running armband for NWZ-E585 | NWZ-E584 | NWZ-E580 | NWZ-E380 NWZ-384 8GB 16GB MP3 Player Produced from superior quality neoprene with reflective 'Jog Safe' banding. Access to headphones and all controls. Secure adjustable armband designed for arms approx. 24cm and approx. 33cm in circumference. If your arm is bigger than this you may wish to consider purchasing the iGadgitz Armband Extender Strap. Please search for the product by typing iGadgitz Black Neoprene Extender Grip Strap in the search bar above.