Applicable hair: damp and dry Thermal conductor materials: eco-friendly alloy Thermal conductor diameter: 16MM-20MM Temperature control adjustment: 3 sections That is an important difference. In the event you Engage in within a youth league, ALL helmets must be ABS plastic and if you Participate in within an Adult league (highschool) https://griffinzkrwp.timeblog.net/66628091/not-known-details-about-adult-medium-speedflex