When you are recording with your action camera majority of the time it will be for extreme sports with the adjustable chest strap mount you can be sure your action camera is safely mounted and capturing your footage ensuring no footage will be missed using the chest harness mount helps give you great point of view footage you will be able to achieve a great 1st person pov which really captures the full experience you can use the harness to capture sports such as motocross cycling equestrian an