Abstract: A hair protection cap according to the present disclosure includes a bag forming an interior channel having an inside surface and outside surface, the interior channel having a first opening and a second opening opposite the first opening. A first opening reducing device enables the expansion and contraction of a size of a perimeter of the first opening and a second opening reducing device enables closing of the second opening. The inside surface of the bag is a pliable material and the outside surface of the bag is a pliable water-resistant material, the pliable water-resistant material extending over the perimeter of the first opening on the inside surface of the bag.