ALL-DAY COMFORT - TERRAMAR BOXER BRIEFS. With the Terramar Boxer Briefs, you can always stay comfortable, no matter what you do. Four-way stretch ability allows you to have full mobility, which molds to your every move. Softspun polyester fabric makes for a breathable, moisture-wicking fabric you'll never want to take off. But you probably should, eventually. FEATURESFour-Way Stretch92% polyester, 8% spandex