Low-profile baseball style safety hat combines style and safety. This Peak Bump Cap has a high-density polyethylene (HDPE) liner with foam cushioning to offer all round protection. You can easily adjust the size for a comfortable fit. Holes in the liner mesh panels give added ventilation and the protective liner is removable and fully washable. Low profile. Baseball cap style. HDPE lining. All round protection. Adjustable. Added ventilation. Removable, washable liner.