The material used shall be of such texture as to constitute a 'covering' of the body. (Transparent nets and similar materials not permitted.). The pattern shall in general conform to that of the ceremonial garment used in the Temple with the following express modifications thereof permitted: the legs of the garment may be shortened from ankle length to a length extending merely below the knee. The sleeves may be shortened from wrist length to [short-sleeved]. Collars, as provided for the ceremonial garment, may be eliminated. Buttons and other acceptable fasteners may be substituted for strings. The crotch may be closed. Side-leg or shoulder openings may be provided instead of front and back openings or any combination of these openings is permissible.