Relevant hair: moist and dry Thermal conductor material: eco-friendly alloy Thermal conductor diameter: 16MM-20MM Temperature control adjustment: three sections This is a very important distinction. If you Engage in inside of a youth league, ALL helmets needs to be ABS plastic and when you Participate in in an Adult league https://adultmediumspeedflex02833.acidblog.net/61936345/facts-about-riddell-speedflex-adult-large-revealed