Our Whistle Sternum Strap Half features a nearly impossible-to-lose whistle integrated into the male (usually the left) half of the sternum strap buckle used on our backpacks and convertible travel bags. The Whistle Sternum Strap Half replaces just one-half of the standard sternum strap.
The classic use of the safety whistle is, of course, signaling you're in distress and need help: three sharp blasts in succession, followed by a pause of at least one minute, and repeated until a response is received.
Available in Steel Grey if you want your whistle to be obvious and easy to see, or Bright Orange (shown above) if you want it to be really obvious and really easy to see.
Visit the Whistle Sternum Strap Half page to order it on its own.