Ideal for travelling – 30% lighter weight than comparable fins. Innovative lightweight and flexible construction for a unique efficient elastic return. Optimal blade/foot pocket angle provides maximum thrust through every phase of the kicking stroke. Water streams are guided on both surfaces by grooves in the blade to aid stability and reduce ankle-torsion. Blade and foot pocket sections are optimally thickened in each section, the result of careful, computer-aided structural design. Ribs inside the foot pocket facilitate donning, reduce fatigue to the foot and improve fin stroke.