The chassis is all leather and clad in sturdy plastic armor at the heels, shins and the back of the calves. Internal ankle plates and a sturdy toe cup round out the protection package, while rubber shifter pads help prevent premature wear. The thick replaceable nylon toe sliders are screwed in place instead of clipped, so you won't look down to find them missing at the end of your ride. The Fusions use a standard zipper and Velcro flap closure system as opposed to the more complicated arrangement found on Sidi's roadrace boots, which makes them easy to get on and off. The soles are thinner and harder than those of other boots, which translates to a precise feel on the footpegs and rear brake but limits walking comfort to a few blocks at best. Thin, stiff insoles don't help the cause. Replace them with something softer or park close to your destination.