Contour pouch briefs do not have to be designed without flies. A contour pouch with a functional fly is easily made since the majority of fly openings are set off to the right of the pouch. All contour pouch briefs have the contour seam running up the center of the contour pouch. Though some briefs are designed with just a contour seam built into the base of the brief's crotch. Functional fly contour pouch briefs offer both the comfort of a contour pouch, which provides you with more room and ample support in the crotch, and the convenience of a fly. Many lifelong brief-wearers have not wanted to buy briefs with contour pouches, because when the contour pouch was first introduced all contour pouch briefs did not have a functional fly. No one wanted to sacrifice the ease of a functional fly for the comfort of a contour pouch with their briefs. Today they can have the best of both worlds since many brands now make contour pouch functional fly briefs.