Ketill's Clothes is the standard armour of Ketill when he joins the party. It can't be removed, just like all personal armour of party members, but if another piece of armour is equipped, then that armour will give the stats, whether it's better or worse than the clothes. This set of armour has no durability score, so it can't degrade like normal armour.
In-game description[]
Ketill's clothes are well worn, but immacualely maintained. Sturdy quilted cloth suited for outdoors activities, it protects well against the weather, but not much besides.