The Nathan Sonic Boom Iphone 4 Armband features an ergonomic design manufactured using NDurAthletic fabric. It features a sleek armband with reflective detailing. This lightweight band can easily carry your phone and you can take your favourite tunes with you to roads or gym.
- 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
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