Linen shirts are articles of clothing that protect a blockhead's upper body from the environment and limited climatic conditions. They are the lowest form of protection for a blockhead's upper body in the game. When equipped, a blockhead's environment bar and happiness bar will steadily decrease at a slower rate than an unequipped blockhead. Over time, if linen shirts are equipped on a blockhead, the shirt will slowly degrade and eventually be destroyed.
Linen shirts are able to be dyed to customize the appearance of a blockhead. Both a dyed shirt and an empty bucket will be returned to the blockhead's inventory.