Mxv Helmet in Helmets July 5, 2004 I was originally going to buy an Optik, until I tried this helmet. The fit was much better for me. The chin cup is great, the straps hide inside the cup. NOTHING protudes out to the front or sides (like on so many others). The box fit my PC105 very snuggly, with no wobble in the camera. Internal audible pocket holds my dytter stable and i can hear it clearly & the is little wind noise. So far this is the best Helemt I have found fpr my head.