Take note: all inflatable jaw pads call for an inflator pump, glycerin, and Unique helmet needle. Never use an inflation needle with no glycerin as damage to The interior bladders could happen. These features are purely for defense and you shouldn't buy a helmet without having them. Bigger good quality https://adultmediumspeedflex24959.tinyblogging.com/not-known-details-about-speedflex-adult-large-74462968