- Classic swim brief by Modus Vivendi. This classic cut swimwear is made from a fast drying, high quality material and features a covered waist with inside drawstrings ending in metal tips for a custom fit. Ideally shaped and manufactured to perfection, this design features a lined contour pouch for extra comfort and a discreet Modus Vivendi logo to the side. Classic style never goes out of fashion! Made of Polyamid 80% and Elastane 20%.