The Skullerz 8955 Lightweight Bump Cap Hat is a comfortable and stylish hat with a ventilated impact-resistant shell for breathable protection against bumps, scrapes, bruises and other minor head injuries. At less than 5oz // 135g (micro brim), this incredibly lightweight bump cap delivers optimal comfort without compromising safety. This bump cap tackles two big challenges workers face in the field: weight and heat. The removable bump cap insert is made of a lightweight but durable high-density polyethylene (HDPE) with maximum ventilation for all-day breathability that doesn't compromise protection. Lining the insert is a removable, washable and anti-microbial EPP foam pad for enhanced comfort, protection and airflow. This pad also helps prevents sweat from dripping down into eyes. Vents in the insert and foam pad channel heat away from the head and Cooling Channels allow additional airflow above the pad. These features combined with vented laser-cut polyester mesh on the hat itself keeps workers cool and comfortable on the job. This lightweight safety bump cap meets the EN 812-2012 standard for industrial bump caps. Not bulky like a hard hat, bump caps are typically worn in spaces where worker-generated impact head protection is needed, like low ceilings, beams, low pipes and other bump hazards. They are ideal for mechanics and airline baggage handlers, as well as workers in factories, in-home services and other industries that do not require safety hard hat protection.