The Quad Lock® Sports Armband is the easiest and most secure way to take your smartphone on your next run.  QUICK TO ATTACH / DETACH  No more squeezing your smartphone into an annoying plastic pouch. The simple twist and lock makes it easy to attach / detach your smartphone.  SECURE MOUNTING  The patented dual-stage lock means that your smartphone will stay secure, no matter how fast you pump those arms.  COMFORTABLE  The Quad Lock® Sports Armband fits comfortably and securely onto your arm or over activewear. The dual-stage lock means that your smartphone sits slightly raised from the armband, so there is no friction between your arm and the smartphone.   *Colored levers not compatible with the running armband.