The 3M™ SecureFit™ Hard Hat H-700 Series provides an excellent blend of comfort, style, and safety. Available in cap style or full brim models, the suspension system incorporates patented Pressure Diffusion Technology and sits low on the head for greater comfort and security. Select models feature a proprietary indicator that lets the wearer know when to replace helmet due to UV exposure. All H-Series non-vented hard hats meet ANSI/ISEA Z89.1 Type 1, Class G and E requirements. All H-Series vented hard hats meet ANSI/ISEA Z89.1 Type 1, Class C requirements. All H-Series non-vented hard hats meet CSA Z94.1 Type 1, Class G and E requirements. Cap-style H-700 series vented hard hats meet CSA Z94.1 Type 1, Class C requirements.