WARRIOR Alpha One Hockey Helmet Combo features The One Shell, which is a one piece high density plastic shell that provides a stiff, strong, and lightweight barrier of protection to your head. The shells distinct geometry is designed to provide impact diffusion coupled with a profile that's aesthetically sleek. OMNISHOCK+ Protection System with Viconic Inserts provide a holistic approach to head protection that's focused on safety. The shell and liner composition is integrated by design. Focused impact zones on the frontal lobe, temples, and occipital are enhanced via a lightweight diffusion plate called Viconic. Viconic absorbs multiple linear and twisting impacts. The True One shell and EPP is the core, forming a lightweight barrier that provides protection against catastrophic injury. The pmpax soft touch foam shield and the Viconic pods are specially designed for specific small and large impacts. ADAPTFIT 360 by Boa provides fit equalization around your head via a micro adjustment BOA dial. The control and individual fit of the helmet allows you to wear safely and comfortably. FLOW COMFORT POLYGIENE LINER AND VENTING helps the wearer stay cool, dry, and odor-free. The removable flow liner is treated by Polygiene to absorb sweat, dry quickly, and keep player cool and odor-free. Airflow through the shell. Color Customization via included side decals.