A scubadiving friend of mine just texted me back and says its a Buoyancy compensator or Buoyancy controlling device. It helps you to reach a neutral buoyancy when you're underwater.
Best regards,
Leo van Miert
Horsepower is how hard you hit the wall --Torque is how far you take the wall with you
Leo van Miert
Horsepower is how hard you hit the wall --Torque is how far you take the wall with you
