Algodoo

This is an improved version of my dragon scale armor. This armor has the exact same hinge constants as the old dragon scales, but is much stronger. This version of dragon scales can take a 50Kg spike going the speed of sound, and the spike will just barely penetrate.

Of course, you're not going to have a spike coming at you at the speed of sound on a battle field, but it's nice to know you can almost take one. (well, if you don't die from the impact)

The armor does have higher friction than default, but it's a slider value, so I think it's probably fair.