Size28.2 x 22 x 17 Centimeters Non-irritant On Skin: PN521 is a safety helmet for men made to be worn for long hours, for which, it features a forehead comfort pad and headband made from non-skin irritant fabric. Lightweight Safety Helmet : KARAM PN521 is a lightweight safety helmet for men working in construction and other similar industries. This helmet is made of polypropylene and weighs just 300gms. Design Features: This safety helmet features an adjustable chin strap, four:point attachment cradle, thick anchor point walls, simple nape strap, and side slots for face fitting and additional hearing protective gear like earmuffs. IS Certified Safety Helmet : KARAM PN521 is IS 2925:1984 certified. Adhering to all the important compliances, this safety helmet for men's industrial use is tested for different climate conditions, shock absorption, and even penetration, electrical, and flame resistance.