【Dual-Layer Comfort】Elastic double-layer strap evenly distributes pressure across your arm, reducing discomfort and preventing fatigue on long runs. 【Heat-Release Inners】Breathable inner design promotes airflow, helping to release heat and wick away sweat to keep your skin cool and dry. 【Strengthened Strap】Reinforced anti-slip strap keeps your phone securely in place without slipping or bouncing, ensuring stability for long-term use 【Universal Compatibility】Fits most smartphones from 4.7" to 7.2", including iPhone, Samsung Galaxy, Google Pixel, and more. 【Washable & Replaceable】Detachable elastic armband is easy to wash and swap out, staying fresh and odor-free for everyday use. 【Dual-Layer Comfort】Elastic double-layer strap evenly distributes pressure across your arm, reducing discomfort and preventing fatigue on long runs.【Heat-Release Inners】Breathable inner design promotes airflow, helping to release heat and wick away sweat to keep your skin cool and dry.【Strengthened Strap】Reinforced anti-slip strap keeps your phone securely in place without slipping or bouncing, ensuring stability for long-term use.【Universal Compatibility】Fits most smartphones from 4.7" to 7.2", including iPhone, Samsung Galaxy, Google Pixel, and more.【Washable & Replaceable】Detachable elastic armband is easy to wash and swap out, staying fresh and odor-free for everyday use.