The band uses highly elastic wetsuit fabric, ensuring comfort even during extended use. The band and pad are separable, allowing for individual washing after use. Ultra-lightweight and simple design. The original silicone holder secures the smartphone. The inner surface of the silicone pad has a bumpy structure to dissipate heat and reduce sweatiness. The position can be adjusted even if side buttons or the camera are covered, depending on the smartphone model. Compatible with all models. Adjustable armband. The flexible silicone material used in the holder is highly elastic. The armband uses Velcro, allowing for adjustment of position and tightness to your preference. L size Fits arm circumferences of 25cm to 40cm. Compatible with various smartphones from 4 to 6.7 inches. Running Walking Jogging