Calvin Klein Intense Power Micro Boxer Brief (NB1048). This silky boxer brief provides all-day comfort and a sleek fit. The famous logo on front and back has a slightly raised surface. Made of polyester and elastane. Tall exposed elastic waist band has modern repeating iconic Calvin Klein logo. Lined contour pouch has vertical seam for support. Slim body defining fit. Seamless seat. Seamless sides. Longer leg helps prevent chafing. Tagless. Flyless.