Offering more than any other wetsuit in its class, the Orca Sonar is constructed from Yamamoto SCS 39 cell, a dense structure neoprene that delivers exceptional buoyancy and flexibility. Perfect for intermediate level open water swimming, the Orca Sonar features the DeltaStretch Shoulder Panel and HyperStretch Underarm, providing excellent range of movement. HydroLift Body and Leg panels and a seamless torso provide buoyancy and keep the swimmer in an optimum position. Orca Sonar - The Sound of Speed.