A Cardillo Stock Lifting Weight Belt is 4 inches in back and tapers down to 2 ½ inches in the front. The majority of bodybuilders wear it because it gives you more mobility to be able to bend over for exercises like rows and you generally get a larger range of motion.

A trick to make your Cardillo tapered weight belt more supportive for exercises like squats and deadlifts is to turn the belt backwards, so the buckle is against your spine and the widest part of the belt is in the front. This will give you the 4 inches of support against your abdomen to be able to press against more leather to create more pressure. It will slightly limit your range of motion to prevent you from leaning over in heavy lifts.