I really like mine and have had the privilige of taking a swim while wearing it. A little water got into it at the neck but not much. I wore it for the rest of the day and was comfortable. I'd recommend it. There's no way I'd want to wear a latex neck gasket all day long so I'm happy with the compromise. I'd say about 90% dry.
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse