ScubaPro Seawing Nova - Blue Built with a space-age Monprene elastomer that is virtually indestructible. Proprietary G4 articulated joint allows the entire blade to pivot and generate thrust. Wing-shaped blade creates a near-perfect balance of stiffness and flex. Variable Blade Geometry wing tips arc upwards, providing more power and increasing stability. For detailed size information, pleaserefer to ScubaproSizing Guide.