Headhunter Spearfishing is proud to welcome MOANA waterman. Since 2011 MOANA has been making some of the best Carbon Fiber fin blades for freediving and Spearfishing. The MOANA blades feature an industry-first multi axial design resulting in a fin blade with reduced torsion(twisting) and improved efficiency. They are extremely strong due to their 100% aerospace grade carbon fiber pre-preg materials. So strong that they offer a 3 year warranty.