



Classic Physique Briefs - Ultra
Ultra Classic Physique Briefs – Maximum Impact, Minimal Distraction
Love the CBUM-style trunk? Want to showcase more of your hard-earned physique without compromising stage presence? The Muscle Potential Ultra Classic Briefs are built for you.
Designed for athletes who want a tighter, bolder cut, these classic physique trunks feature a minimum 1" side strap, with a customizable rear coverage option—Full, 3/4, 1/2, or 1/4—so you can control exactly how much glute you're showing.
We ask for your waistband, front, and rear height measurements to tailor the suit to your physique. Keep in mind: to maintain the signature fit and shape of the Ultra Classic style, minor adjustments may be made to your requested measurements.
Whether you're stepping on stage with Classic Physique lines or pushing boundaries with bold aesthetics, the Ultra Classic Brief is here to highlight your muscle potential—front, back, and everywhere in between.
Muscle Potential are not your typical classic physique briefs.
(Choose a rear style below to see rear style picture on left)
Waistband Measurement:
Front Height:
Rear Height: