Abstract: An undergarment includes a body having a genital covering front panel, an anus covering back panel and a crotch connective portion connecting the front panel and the back. panel. An access opening extends across the front panel, the crotch connective portion and the back panel. The access opening extends up the front panel to provide access to a wearer's genital region. The access opening extends up the back panel to provide access to a wearer's anus region. A pair of sliding closure members are provided. The closure members define a closed position when placed in abutting relation. The closure members define an open position when placed in a spaced part position. The size and positioning of the open position being adjustable by selective positioning of the sliding closure members.