3M™ SecureFit™ Safety Helmet X5500 Series provides secure, comfortable and adjustable head protection for workers in a variety of situations. Our helmets feature adjustable positioning and easy-turning, 4-point ratchet suspension systems that features the exclusive 3M™ Pressure Diffusion Technology. X5500 Series safety helmets have 3M™ UVicator™ Sensors that indicates damaging levels of ultraviolet (UV) light. They meet the EN397 standard for general industrial use and are available in a variety of colours with or without vents.