The Ion sleeveless long john is the perfect solution for those days during seasonal transitions. Thin and quick-drying neoprene minimizes the wind-chill yet still guarantees maximum flex. If you race on long boards or in a pumping class, this is the wetsuit for you! The sleeveless design won't impede your shoulder mobility and keeps you from overheating when you are working hard. Throw on a neoprene top or jacket between races or if you get a bit chilly!