In this barkskin 5e spell you do touch a willing creature. So until the end of this spell, the target’s skin has a rough, bark-like appearance and also he target’s AC can not be less than 16, regardless of even what kind of armor it is actually wearing.
Attributes Of Barkskin 5E Spell
|Casting Time||1 action|
|Components||V S M|
|Duration||Up to 1 hour|
|Material||A handful of oak bark|
|Target||A willing creature|