This is a must have item here in the South. The suspension systems that usually come with the hardhats have a vinyl headband that ends up feeling similar to wearing shorts in a car with black vinyl seats in the middle of August, only it's on your forehead. These wrap around and snap in place and keep the sweat from rolling into your eyes and your hardhat from sliding around and falling off your head. Oh and they are so much better than wrapping a paper towel around the front headband (you know who you are). Also when they start to resemble the color and texture of cardboard it's time to take it home and wash it!