It's neither bug nor clipping, but I found that with Male Eivor's shoulder is literally shrinking with Mentor's Robe.

I can understand the shoulder looks thicker and wider with equipment, but shrinking is not the option.
Without Mentor's Cloak, this feels very uncomfortable not only during gameplay but especially during movie scenes that Eivor's body seems to be weird.

There are armors that gracefully fitting Eivor's naked body such as Berserker Armor, I hope they can refactor the Mentor's Robe the same way.

Totally agree with you.
Two hand weapons should have better damage than now.

Actually, not only the Mentor's Robe is a problem here.
There are a lot of armors that are not reflecting Eivor's naked body correctly (thin shoulder with the Thegn Armor, thin upper arm with Huldufolk Armor, etc).

I am so surprised because even the armor sets that need Helix credit to unlock (such as the Huldfolk) do not gracefully fit the naked body, as their appearance is the most important for such "premium" armor.

Of course, those are not some critical issues for the game itself, but once you have noticed that something is wrong with the character's appearance, it's really distracting.

It's neither bug nor clipping, but I found that with Male Eivor's shoulder is literally shrinking with Mentor's Robe.

I can understand the shoulder looks thicker and wider with equipment, but shrinking is not the option.
Without Mentor's Cloak, this feels very uncomfortable not only during gameplay but especially during movie scenes that Eivor's body seems to be weird.

There are armors that gracefully fitting Eivor's naked body such as Berserker Armor, I hope they can refactor the Mentor's Robe the same way.