Slotted Topgard hard caps are lightweight, durable hard caps that offer top-impact protection from small falling objects and have good dielectric properties. These hard hats meet or exceed the applicable requirements for a Type I helmet (top impact) as defined in ANSI Z89.1-2003 and CSA Z94.1-2005, Class E (electrical high voltage). Limited resistance to top impact or penetration is maintained through use within a wide temperature range. Fas-Trac ratchet suspension system. Color: Blue