Many kinds

1.This durable, light-weight sports armband keeps your mobile secure and protected during activities such as jogging, fishing and biking…
2.Full transparent screen protector allows full touch screen functionality.
3.Adjustable armband, lets you adjust your armband for maximum comfort.
4.Reflective strap or LED lights allow drivers and other pedestrians to identify you in the dark.
5.Waterproof
6.Various material colors are available and the case can be printed nice as well.