NATHAN SONIC BOOM SAMSUNG GS4 BLACK LIME
SPORTCO LTD
Sleek armband offers easy-touch window and easy access to controls.
Ergological design integrates NDurAthletic and moisture-wicking material.
Unique hybrid of polyurethane and performance textiles deliver enduring protection.
Soft ergo-armband optimizes comfort and eliminates friction.
Moisture-wicking material moves sweat away from body and adds breathability.
Reflective hits promote low-light visibility up to 1200 feet.