The Interstate Safety Full Brim Hard Hat with Ratchet System is comfortable, tough and lightweight protective headgear that helps protect the head from small falling objects and fixed objects that may be bumped into. The 4-point suspension system has unique features that allow for a customized height and fit that best suits the individual needs of the wearer. A smooth, easy-turning ratchet suspension allows for simple adjustments.Besides head protection, full brim hard hats offer extra shielding from the sun, splashes, rain, sleet, and snow for enhanced comfort. Full brim hard hats are often preferred in hot and sunny locations because of the extra shading they provide. A hardhat is commonly worn in these industries: heavy and light industrial, construction, oil and gas, road work, utilities, forestry, and mining.ANSI certified Z89.1 standard, having classified as Type 1, Class E, G, and C, this hard hat has been tested to withstand impact, penetration, flammability, electrical insulation, marking and humidity which means it is an extremely versatile hard hat in most hazardous working environments.Interstate Safety Hard Hats are engineered to provide comfort, protection, balance, and stability to help keep DIYers and professionals safe