661 Comp Helmet - 2018 - CPSC/CE The 661 Comp full face helmet offers great entry level performance without the big price tag of other helmets available. With a light polycarbonate shell and excellent ventilation, this helmet will keep you protected and comfortable. If you are new to the sport or occasionally hit the bike park, you won't be disappointed. We have used this helmet in the past and found it to be extremely comfortable. Polycarbonate shell. Large eye port for great visibility and goggles. Excellent ventilation. Complies to standards: CPSC, CE:1078, AS/NZS 2063