Obviously A04 PrimeMan AnatoMAX Hipster Brief Titanium S Make these briefs your primaries! They're made of an amazingly lightweight premium fabric that's designed with lots of stretch for a custom fit. Made of micro modal and Lycra spandex. Knit is antimicrobial, breathes comfortably, and has 4-way stretch. Soft modal blend body offers an impeccable feel. Pouch has an anatomical seam at front for a comfortable fit. Seamless rear. Obviously waistband is sleek elastic. Covered elastic around leg openings to maintain fit. Tagless. Flyless.