Universal Black Neoprene Workout Sports Armband for Smartphones COMPATIBILITY Our Armband is a universal fit. Compatible with all phones up to 4.7 inches. Our Armband also offers 4 HEADPHONE SLOTS, unlike many others, allowing unmatched compatibility with all cellphones. With 2 different options for sizing our armbands fit snug on your arm at all times. DURABILITY Our Armband is made of the highest quality soft Neoprene that is made to BEND, TWIST, and FLEX, But NOT STRETCH out of shape. It can stand up to the toughest of workouts and marathons. The extremely light Fabric is water resistant and sweat proof. We have made changes to provide extra stitching at stress points to make sure your armband as tough as your workouts! COMFORT The SOFT but DURABLE fabric will allow you customize your Armband to fit your arm PERFECTLY and give you MAXIMUM COMFORT! In just a few seconds you will have the Armband adjusted to fit your arm! EXTRA FEATURES As seen on FOX, CBS, NBC and ABC ~ This Armband includes a built-in hidden KEY OR FOB HOLDER. Perfect for keeping your keys in a safe place. Now you never have to worry someone stealing your keys at the gym, or losing them on a run! The Armband also has a REFLECTIVE LIGHT STRIP to keep you safe and seen at night. Stay focused on achieving your goals instead of worrying about cars not being able to see you while running in the evening! GREAT FOR EVERYDAY USE If you enjoy RUNNING, WORKING OUT, HIKING, CYCLING, TRAINING, STUDYING WITH MUSIC OR ANY OTHER SPORTS, then this Armband is perfect for you. This stunning Armband is much different from others you will see on Amazon by offering exceptional quality and comfort while giving you the best looking Armband in the gym. Buy this Armband TODAY and you will NOT be disappointed!!!