Buoyancy and flexibility at the same time the vibrant shows that buoyancy and flexibility do not necessarily have to contradict each other in this price range combined with its good gliding properties which result from the use of 100 neoprene it offers beginners and advanced swimmers alike the necessary safety in the wet element even in the hectic minutes after the start supported core stability the vibrant is reliable because of the successful combination of buoyant longlife cell neoprene a