This board has a fuller outline with a full nose. It has a single concave from nose to tail along with a lower entry rocker. The 4Barrel has a moderate tail rocker and a thin sensitive tail.
When riding the 4Barrel as a quad, the best tail shapes are a swallow tail, a swallow tail-winged combination, or a rounded tail. When riding as a thruster, a squash tail works best in small conditions. The 4Barrel is also shaped with a 5-fin option. Regardless of the setup you choose, the 4Barrel is designed to be ridden 1”-3” shorter than the traditional shortboard.