Now that you’re outfitted with the facts, here’s how the M1 performs on the road. As for function, the M1 inspires confidence while riding. I felt protected. The torso part of the jacket fit me brilliantly out of the packaging, even with the back protector inserted, thanks to the rear accordion panel. Before shipping out on a 1,000-mile trek with a few buds, the M1 did feel a bit stiff in the arms, especially the biceps (too many 100-pound curls, I guess… not!). But envision an already form fitting jacket with somewhat bulky armor in the elbows and shoulders mixed with stiff cowhide and Mr. Olympian-sized guns, and you can understand why it fit a big snug.