Jason Wigginswrote a review of Fox Racing Rampage Pro Carbon MIPS Helmet on August 30, 2015
Familiarity: I've used it once or twice and have initial impressions
Quality, technology and styling on this helmet are all top notch. I will write more after I get more than one day of riding on the helmet.
Fit was a little off for me. I measure towards the top end for a large helmet on Fox’s size guide. I bought the large and is was miserably tight on crown and cheeks. I bought the XL and it was snug but comfortable. The XL passed Fox’s fit guide. The return of the L helmet was pretty easy with Backcountry. Printed a shipping label, dropped at the UPS store a few miles from my house. I think I get billed the return shipping but no big deal.
This is my second MIPS helmet (POC was first). I will not buy a new helmet without MIPS. The previous reviewer probably has not spent much time reading about the MIPS system. The research and testing on are quite compelling. Don’t trust me or the other reviewer. Read for yourself www.mipshelmet.com . I personally would rather pay a little more and reduce my risk of brain injury from a crash.