The primary function of a lacrosse helmet is protection. The main difference between helmets is weight, field of vision, and fit. It is important that the lacrosse helmet fit snug to your head to limit injury. Most helmets in the game today offer unique ways of adjusting the helmet size so you can customize it to fit your head. Lacrosse helmets are riddled with air vents to increase air flow and decrease its weight. All helmets come with an adjustable chin strap for added protection. Helmets can also be customized to match your team's colors.