Darwinism wrote a review of Giro G10 Audio Helmet on February 23, 2007
The L is too small and the XL is too big. The G10 is about a half size bigger than the fuse or 9. I wish it fit, because it's probably the lowest profile/sleekest of the Giro line. Tune ups II works very well. I like it better than the wireless audio because it 's much less bulky.