Shallow water blackout

THE FREEDIVER'S VEST FOR THE MANAGEMENT OF SHALLOW WATER BLACKOUT
Well-trained freedivers who know the risks of shallow water blackout (SWB) die at an alarming and predictable rate. The vast majority of SWB victims are found on the bottom with their weight belt firmly in place. Why is this? For some answers, download the Adobe pdf file linked below. THE CASE FOR A DEVICE TO MANAGE FREEDIVER BLACKOUT	Brian Yoshikawa mimics shallow water blackout