i have always liked the leicatime ones. although they might not fit around the LCD and the dial of the m8 as neatly as some others, the velvet lining and leather finishing is very nice. i like the one without the handgrip, but still provides a little "bump" for the fingers to wrap around for additional grip.
final point is that luigi can custom cut to your liking, for a small price, e.g. thumbs-up, USB port, with or w/o back flip rivets, etc.
final point is that luigi can custom cut to your liking, for a small price, e.g. thumbs-up, USB port, with or w/o back flip rivets, etc.