A non-bulky, disposable undergarment primarily designed for male wearers who have minor urinary leakage such as from prostate surgery. The undergarment includes a soft, flexible base sheet of a non-woven material. The base sheet has a rectangular main panel which extends from the wearer's lower front trunk between the legs of the wearer to immediately rearward of the genital area to cover the person's genital area. A pair of left and right straps extend rearwardly from the main panel which are interconnected by a transverse connecting strap at a lower rear trunk of the wearer. The straps extend from the connecting strap leftward and rightward around the lower trunk of the wearer. The ends of the straps removably interconnect to the main panel and each other in overlapping fashion by pairs of interlockable hook and loop patches affixed to the main panel and the ends of the straps to securely hold the undergarment in place on the wearer. A elasticized liquid absorbent pad affixed to the base sheet is formed into a genital receiving cup retained by the base sheet covering the male person's penis and scrotum and having elasticized longitudinal moisture seals at the person's lower trunk and legs.