What secures the nape strap pad to the helmet shell on the HGU-56/P helmet?

The nape strap pad on the HGU-56/P helmet is secured to the helmet shell using a tie-down strap. This design allows for effective attachment while also enabling adjustment and removal as needed. The use of a tie-down strap ensures that the pad remains securely in place without the permanence or rigidity of adhesives or screws, which could complicate adjustments or maintenance. Additionally, Velcro straps are typically used for other helmet components but do not play a role in securing the nape strap pad specifically. Understanding the assembly and adjustment mechanisms is crucial for proper usage and maintenance of the helmet equipment.