|Function||To withstand great physical damage.|
Enhanced Durability is the ability to withstand a great physical damage or impact.
Upir skin is strong enough to impervious to glass and anything as sharp as it. This can also mean they are immune to great physical trauma caused such by such things as falling on hard stone. For example after being upset Roman slammed his head onto the mirror with great force however he was left unharmed without a drop of blood or a single scratch. In fact, Upir barely shed blood when hit with blunt force trauma.
Jarmungandr skin is almost virtually invulnerable, with an Upir strength being only able to break the false human skin over their true form. Their bones can even be broken by Upir, though this can not truly harm them, as they recover in minutes.