Keep the party going from dusk till dawn with the new PUMP! All-Access Black Trunk. Both sensual and playful, the PUMP! All-Access Black Trunk sculpts to the body, while its backless rear highlights all your favorite assets in a sexy yet masculine charm. Made from a cotton and micromesh blend, the All-Access Black Trunk also offers full support, due to its easy fit, comfort, and flexibility - so you can work hard and play even harder.