Retention systems break down into two basic categories. One with a dial adjustment in the back of the helmet, similar to a construction helmet, the other without. The dial systems allowed for additional adjustment and a great fit. The con is the extra room they take up inside the helmet.

The 4-Point system is the traditional retention option for ballistic helmets. A 4-point chin strap secures the helmet to the user’s head, while a mesh crown or padding system suspend the helmet from the top of the head.