Alpha One PRO Ice Hockey Helmet Non-binding recommended retail price of the manufacturer is 149,95 € Little brother of the top helmet ALPHA ONE True One Shell: The sturdy one-piece plastic shell offers maximum protection despite extremely lightweight construction. The Truo One Pro SHell, with its special geometry, offers a balance of narrow look and optimal distribution of external impact. Omnishock Protection System W/IMPAX FOAM: Holistic construction to protect the head Strategically placed foam pads (IMPAX FOAM) protect sensitive areas such as the temples, the back of the head and the forehead area against harder impacts. The IMPAX foam cushion absorbs different linear and rotational forces. The True One-piece plastic shell and the EPP protective pad are the most important factors for the high protection 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. Thanks to the 270° BOA system, the helmet is optimally adapted to the head from all sides in a matter of seconds. This guarantees maximum comfort with maximum protection Flow Comfort Polygiene Linear and Venting: Our interchangeable Velcro pads are treated with Polygiene. This prevents the formation of bacteria and germs, dries quickly and gives a cool feel. The air circulation through the shell has been optimized to avoid overheating. Pads are washable and can be purchased individually.  Sizes - Head circumference:Small = 52 - 56 cmMedium = 56 - 59 cmLarge = 57.5 - 62 cm