iGadgitz Water Resistant Black Sports Jogging Gym Armband for Sony Walkman NWZ-F886 NWZ-F887 F-Series Video MP3 Player 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. Produced from light-weight neoprene, it protects your MP3 from chips and scratches. Silk Printing for the volume and power buttons to allow for full functionality during exercise. Headphone tidy to tie up headphone slack. Ideal for wearing to the gym or whilst jogging. Secure adjustable armband designed for arms approx. 25cm and approx. 34cm 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.