Alpha One PRO Ice Hockey Helmet Manufacturer's recommended retail price is € 149.95 Little brother of the top helmet ALPHA ONE True One Shell: The stable one-piece plastic shell offers maximum protection despite its extremely light construction.The Truo One Pro SHell, with its special geometry, offers a balance of slim look and optimal distribution of external impact. OmnishockProtection System W/IMPAX FOAM: Holistic construction to protect the head Strategically placed foam pads (IMPAX FOAM) provide targeted protection against harder impacts in sensitive areas such as temples, the back of the head and the forehead area. The IMPAX foam pad absorbs linear and rotational forces of varying strengths. The True One-piece plastic shell and the EPP protective pad are the most important factors for the high protective function against serious injuries The IMPAX foam pads have been specially designed to protect against light and medium forces. AdaptFIT 270 by BOA: Very good and easy adjustment options thanks to the 270° AdaptiFIT. The helmet is optimally adjusted to the head from all sides in seconds thanks to the 270° BOA system. This guarantees maximum wearing comfort with maximum protection Flow Comfort Polygiene Linear and Venting: Our interchangeable Velcro pads are treated with Polygiene. This prevents bacteria and germs from forming, dries quickly and gives a cool feel. Air circulation through the shell has been optimized to prevent overheating. Pads are washable and can be purchased individually.  Sizes - Head circumference:Small = 52 - 56 cmMedium = 56 - 59 cmLarge = 57.5 - 62 cm