This sturdy belt is made of 4 wide black leather to provide plenty of support. On the back is a 2.5 O-ring well bolted to the inside of the belt. The 2 fastening belts run completely around the wide belt and also bolt to the back ring. For added strength this belt uses double D-ring fasteners. We have found the double D-rings to be the strongest by far. This belt also has an O-ring on each side which provides plenty of suspension options. This is one very well built belt, designed and crafted specifically for suspension, it should last for many years.