That's not the way I want mine to fit. I want them to cover the inner and outer parts equally. If you really think about it, I would rather damage the muscle on the outer part of the leg than cut the femoral artery on the inner!! I wish I had bought full-wraps now, but I wasn't sure about how restrictive they would be.
I've got full wraps, and they don't seem to be all that bad... The wrap part is only on the lower legs, not covering the entire leg.
Reason being is probably since the top part is less likely to move since the belt is holding it in place... however, the farther down one leg you go, the less is holding it in place and preventing the material from sliding around if the chain grabs it...
OP, beware of how a saw can spin the chaps around, uncovering you leg in the process. It's happened before and probably is the key reason for someone to come up with the full wrap design.