Ultimate Carbon Booms aim to complete the windsurf boom trifecta of maximizing stiffness and strength with minimum weight. With a FEM optimized lay-up, material is added only to high-stress areas, ensuring that it can be removed in low-stress areas, and only put material where you need it. All features ensure that your sail is turbocharged and performing to maximum design potential. Drive your sail with maximum responsiveness, with instant feedback, at the flick of a wrist. A unique combination of design, materials & technology. Go Beyond.