The 29/71 Weight Belt with the worlds first Carbon Fibre Freediving buckle. Made with high strength silicone HS 60. With Silicone’s characteristics the belt is very elastic and will continue shrink or expand with your bodies’ form when either descending or ascending. So ensuring you belt stays in position throughout your dive. And with the Carbon buckle weighing 25g you have an ultra light diving belt compared to the standard heavy steel weight belt.