Nathan Sonic Boom Music Carrier for Samsung GS4

Sleek, moisture-wicking armband protects smart phone while providing easy access to controls.

• Performance textiles deliver enduring protection and chafe-free comfort
• Large, clear touchscreen protects and provides access to smart phone screen
• Moisture-wicking material moves sweat away from body and adds breathability
• Reflective hits promote low-light visibility up to 1200 ft