3M SecureFit H-Series Hard Hats provide 3Ms proven comfort innovations in the traditional, full brim and cap designs that many prefer. If you wear a hard hat for a full shift, youll want a comfortable, proper fit, and SecureFit H-Series hard hats have been designed with just that in mind. The suspension sits low to reduce pressure to the head, while exclusive, patented Pressure Diffusion Technology enables the system to self-adjust to the wearer as the smooth, easy-turning ratchet is tightened. Multiple levels of height and head-shape adjustments allow the wearer to customize the fit even further. The washable, replaceable sweatband is constructed of a premium, moisture-wicking material to help keep workers cool and dry. All H-Series models meet ANSI safety compliance standards and accommodate a variety of 3M face-shields, earmuffs and additional accessories (all sold separately) to meet a range of unique jobsite requirements.