Orca Sonar Open Water Triathlon Swimming Wetsuit 2021 The Orca Sonar is the most versatile wetsuit in the Orca swim range. The distribution of buoyancy makes this wetsuit ideal for both natural and beginner swimmers and the flexibility provided by the 39 cell Yamamoto neoprene allows for maximum freedom in the arms to help you swim confidently for longer without restriction.  CLS technology will help provide stability in the abdomen and this combined with Orca\'s Aerodome will help you maintain correct positioning in your lower body.