Silicone Case Design: Fit your iphone 6s 6 seamlessly & prevent phone movement while running !
Wide-open Operation: Wide-open design does not hinder touch screen use and all other buttons use. Also have precise cutouts for all ports of your iPhone 6s 6.
For Any Biceps: Three pieces of high-quality extension straps, suitable for biceps range from 9.4 - 15.6 inches.
Comfortable Wearing: Rows of grooves are made for the purpose of perspiration draining. It's breathable !
For iPhone6 / 6S