You should never play lacrosse without properly protecting your head and face. Helmets that are equipped with a face mask, chin protector and chin strap are mandatory in most league play and should also have government safety stickers on them. The helmet and mask are designed to absorb any shocks, but should also be lightweight and well ventilated to keep you cool. The masks are the wire cage style, usually made out of carbon steel, which allows for maximum visibility. The exterior of the helmet is made out of a hard composite or plastic material, while the inside is usually padded with foam or a synthetic substance. Make sure your helmet is adjustable and fits you properly, so it doesn't move about on your head. Helmets come in various materials sizes and colors.
