The pith helmet was made popular by military personnel decades ago, in tropical areas, to protect the head and face from the sun and it’s still perfect for exploration today! Rothco's Khaki Pith Helmet is made of a high-density polyethylene, which is waterproof, and provides excellent protection from the sun. There is an adjustable hook and loop strap on the inside of the helmet to give you a comfortable fit. The helmet was made in USA and one size fits most adults. Exploring the wild? Don’t leave home without this Khaki Pith Helmet!