So, Gestir is probably the class with the least skins...He pretty much has none, just like Berserker, yet Huscarl got some.
So let's give him something; Chainmail.
His forearms are now armoured with some old worn chainmail, just imagine that he's got a chainmail inside him, not just the torso clothing.
How to install
? Just download the file from the download link, then extract the .rar and put the .vpk file in "C:\Program Files\Steam\steamapps\common\pirates, vikings and knights ii\pvkii\custom". If there is no "custom" folder, make one.