OccuNomix 8 5/8" X 1 3/4" Blue Original Soft Disposable Sweatband is made of polyester for durability. Ultra thin sweatband is good absorbent and it will not tear, break, flake or become Dry and brittle. It contains no chemicals and do not require hydration to soften. Sweatband easily attaches to hardhat for quick protection for workers in hot environments.