Description:Nothing calls to mind the classic Batman TV series from the '70s like the theme music... Na na Na na Na na Na na Batman! These green boxers for mean are covered with the phrase and have an action image of the Dynamic Duo. There is a detachable cape on the rear, for your crime fighting adventures. Whether you favor Batman or the trusty Robin, there is no choice about these boxers- they are cool! Button fly, exposed elastic waist.