I'm curious to know this as well. I know the Mach 2 has leather in certain places, while the Mach 1 doesn't, but I'm not sure what the Mach 3 adds.Thoth said:It's a nice looking jacket, but just out of curiosity what are the differences, if any, between this and the Mach 1 and Mach 2? Are they only cosmetic or have they added a few features safety-wise?