Fin configuration: One 1.7" Maruca Poly fin on tip and one 2.1" Sure Thing fin on tail. Construction: Foam core, layered glass integrated from top to bottom. Company comments: The Cruiser is for beginner riders looking to get out there and stick their first wake to wake jump. A 2.8" continuous rocker that fits any first time rider. A full length "V" Beam offers consistency on landings. A Sure Thing fin will keep new riders guided with stability on deep water starts and through riding in choppier water.