Better body positioning a core stabiliser system within the wetsuit helps promote better body positioning while highly buoyant y40 yamamoto neoprene lifts you higher in the water result less drag more speed and fresher energy on the bike features and benefits improved buoyancy and body positioning made from super buoyant y40 yamamoto cell neoprene the elite wetsuit is engineered for optimum buoyancy and warmth ideal to assist your swim and reduce fatigue over longer distances a core stab