For some reason cloaks are shrunk down when using the Rus Torso on a Jomsviking which causes the cloak to clip into the armor. It happens with every cloak, and the clipping starts once you equip the Rus Torso onto a Jomsviking.
Here's a video showing the bug. I used some of the smaller/thinner cloaks so that it would be easier to see what I mean, but all of the cloaks are shrunk down and have some clipping with the Rus Torso.