Nathan Frequency you can easily and comfortably listen to any MP3 device during
an energetic run, walk, or hike. Hopefully, it will help increase the frequency
of your runs.
provides music player protection with easy access to control.
Holds any sized
iPod and most other MP3 players
comfortable neoprene fabric flexes to give you a customized, breathable fit
D Clip binding
allows for one-handed, on-the-go, fastening of arm cuff