The main downfall to running with a smartphone is dropping it, fortunately Nathan has made the SonicGrip for Galaxy S4 to stop that annoying problem. Featuring a fully adjustable hand straps with a thumbhole to give you the best grip possible and reflective accents so you can safely run in low-light conditions. The SonicGrip for Galaxy S4 gives you the ability to run while listening to music and keeping your Galaxy phone damage-free.
Fully-adjustable hand strap and thumbhole offer grip-free running
Performance textiles deliver enduring protection and chafe-free comfort
Reflective hits promote low-light visibility up to 1200 feet