This grey Under Armour serger briefs I won at an eBay auction in 2015. Seller was neverdancenaked, and it was given this picture and the following to this description at the auction: Lightweight nylon or polyester /lycra knit with flatlock serger seams. Moderate/high compression fit. Men's Medium, 34" Nominal Waist, 3” Inseam, MBN** - 97%+++. ...