The cheek pads can also be ejected by pulling red emergency tabs on either side of the helmet’s undercarriage in an event the helmet needs to be safely removed by first responders, while titanium double-D rings are used to secure the chin strap. The Advanced Channeling Ventilation System (...
although the gap between the shell and the cheek pads is tiny and tight. You’ll have to use a boom mic inside, however, because of the large chin vent with the secondary slider on the inside of the chin bar. We said this about the DS-X1 and it goes for the RPHA 11 Pro as well...