The MSA standard V-Gard slotted hard hats consist of a polyethylene shell and suspension system working together to create a comfortable protection system, hardhats have a five-year life span from the day it's put into service. Visually inspect your hardhat every day for signs of wear. If it takes a hit it should be replaced. Constant sunlight will accelerate component breakdown, and the suspension should be replaced every twelve months
Mine Safety Appliance V-Gard® 463942 Protective Cap, Slotted Front Brim, Size: 6-1/2 - 8 Inch, Suspension: Staz-On® 4-Point Standard, Polyethylene, White