With pillar valve o-rings used in place of buttons, this top has a subtle diving theme, yet looks good and is a great next to skin layer beneath any undersuit. It can be worn on the way to the dive and then worn as part of a layering system, next to the skin. Flat seams make the top very comfortable and the wicking fabric keeps the skin warmer and drier. Wear underneath your everyday clothes prior to the dive, and then there is no need to get changed completely, thus helping you to stay warmer beforehand.