7 idp m2 helmet7 idp is no stranger to lending their protective hand to those whose ride with an instinctive rowdiness a familiar face with their knee back and elbow guards being worn by pros and diehard rider everywhere 7idp enters the non full face head protection realm with their m2 helmet through its eps construction with cone head technology the m2 features a longer backside that offers more coverage at the back of the head with 19 vents carved out the m2 offers no shortage of ventil