Best to stick it in an 'Aquapac' pouch, it is waterproof, prevents the device from taking water when it is exposed to high-impact contact with water, which increases the pressure momentarily and can exceed the device`s design max. pressure. The Aquapac has a large strong velcro strap which fits around the upper arm, and has a lanyard which I then tie to my wetsuit zipper-strap, for those windsurfing accidents over 30knots when you bounce a few times before stopping to see if your arms are still attached.
