During use of a firefighter helmet or a similar helmet, a detachable protective earflap unit can be used to provide convenient and easy storage of personal items for the firefighter or other helmet wearer secured at the back of the helmet and below the rear brim or rear lower edge of the helmet by a utility strap securement assembly. The protective earflap unit comprises an earflap having a utility strap securement assembly that selectively may encircle and retain eyewear, an eyewear case, a utility bag, or other small personal item.