It may be hard to describe, but once you try it, you wont want any other type of boxer brief. XMark Underwear features a unique pouch seam structure that follows along your junk to a single point under your body (the center of the 'X'). This means, our pouch starts where you start and actually separates your package from your legs. The narrowing of the pouch seams to a single point also means less fabric between your legs eliminating bunching. From the single point under your body, the back seams come out to support the rest of your backside. When you look down inside a pair of XMark Underwear, you'll see the 'X' seam structure all in a classic boxer brief style.