Sports Armband, Bluebits Armband for Running, Exercise, Biking Sweatproof Armband with Adjustable Extention for iPhone & Samsung Smart Phones - Life Time Warranty Adjustable Arm Width Provides a Secure Grip for Both a Small Arm and a Bigger Arm. Touch Screen Supported, No Need to Take Out Phone to Use. Touch Plastic Cover Supports Touch Screen Feature So You Can Use Your Phone Without any Restrictions. Tight Seal Cover Secures Tightly So You Dont Need to Worry About your Phone Falling Out. Night Reflecting Shines at Night to Ensure Safety for Running or Walking at Night. Sweatproof, Lightweight, Sports Armband Allows for a Secure Place to Keep Your Phone While You Are Running, Walking, Exercising, or Any Other Activity You Enjoy Doing!