iGadgitz Reflective Anti-Slip Black Sports Jogging Gym Armband for Sony Walkman NWZ-A15 NWZ-A17 NW-A25 NW-A27 8GB 16GB 32GB & 64GB with Key Slot Not Suitable for any other Sony Walkman. Please note that this armband will not fit your phone if it is in a case or cover. iGadgitz custom-made running armband for Sony Walkman NWZ-A15 A17 & NW-A25 NW-A27 MP3 Player Produced from superior quality neoprene with reflective 'Jog Safe' banding. Access to headphones and all controls, including full use of touch screen. Secure adjustable armband designed for arms between 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.