The OB1 belt was born during my training. At that time, freediving was not an organized sport. It was the time to explore, with rare amateurs and the only emblems Jacques Mayol and Enzo Maïorca.
There was very little diving equipment. To go further, I needed a belt that would be more flexible, ergonomic and more comfortable than what was available on the market. So I made the first OB1 belt myself, without any rigid buckle.
World record holder creates OB1 belt: Jeff Coulais