Rothco Pith Helmets The Pith Helmet is Made in the USA Made of a Waterproof 100 Percent High Density Polyethylene Features an Adjustable and Removable Hook and Loop Terry Cloth Sweatband Designed to Keep the Head Cool While Protecting You from the Sun This CA Proposition 65 Warning is to provide notice that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm