Abstract: An undergarment for use as tucking (or gaff) underwear is disclosed. The undergarment includes a main body include including 4-way stretch fabric. The main body defines a pair of leg openings spaced along a first axis. The main body has a front portion and a rear portion positioned opposite the front portion along a second axis. The undergarment further includes a compression panel that is positioned to cover male genitals of the wearer. The compression panel includes two-way stretch fabric oriented to permit stretching along the first axis and limit stretching along the second axis.