The women must cover everything but their faces and hands with a material which conceals the color of their skin. The body must remain covered throughout the various movements of the prayer. So if, for example upon bending, the woman’s scarf hangs forward exposing her neck from an angle, this is not acceptable. Either the woman needs to be sure that her clothing is tucked in properly to prevent exposure, or she may put clothing over her normal clothing which does not allow exposure at angles. This clothing has an added benefit in that it conceals the shape of the body, for it is disliked for the shape of the woman’s body to be apparent while she is praying (See Notes).
For the man, his area between his navel and his knees must be covered during the prayer. Like for the woman, the material with which he covers this area must not be see-through; that is, it must be opaque so as to conceal the color of the skin.