The obi, or sash, is about four inches wide and varies in length from twelve feet and a half to fourteen. It is usually of the same material on both sides and can be worn either side out. It is stitched along one edge and stiffened with a padding. This is the regular sash, commonly called the square obi; but when we are at home, go out for a walk, or visit an intimate friend, we prefer another kind of sash, which is a piece of white crêpe, about ten feet long and varying in width from a foot and a quarter to two feet, and stitched at the ends to prevent their fraying. It is much more comfortable than the other.