DeMarini Pro Maple 271 Composite Wood Baseball Bat (BBCOR) The DX271 is a new profile in the DeMarini wood composite bat family of bats. The DX271 Pro Maple patented design combines a wood 2 5/8" barrel with a composite handle that is more durable without sacrificing the premium wood sound and performance. Cupped end for lighter feel and faster bat speed. It includes a limited, three-month warranty.