The Nathan Sonic Boom Armband sleek armband offers easy touch window. The ergological design integrates NDurAthletic and moisture-wicking material. Express yourself with fresh color updates bound to add more spring to any step.
Soft Ergo armband optimizes comfort and eliminates friction
Unique hybrid of silicone and performance textiles deliver enduring protection
Moisture-wicking material maximizes sweat resistance
Reflective hits promote low-light visibility up to 1200 ft.