A pith sun helmet, also known as a pith helmet or a sola TOPEE, is a lightweight protective headgear traditionally made of cork or pith. It was popularly worn by European and American military personnel in tropical climates during the 19th and early 20th centuries. The pith sun helmet is designed to protect the wearer from the sun's rays and provide ventilation. It is typically white in color and has a wide brim that shades the face and neck. The pith sun helmet is still used today by some militaries and is also popular among outdoor enthusiasts.