For this year's vacation I bought her the above snorkel, to equal even a neoprene shorty in support of female-insufficient thermoregulation. And actually - she was snorkeling the whole holiday with absolute enthusiasm several times a day and persevering. The snorkel prevents truly complete water ingress, and Mini-residues can easily blow. I myself have not tried the part, as I have no problems with basic snorkeling and me extra gimmicks are rather suspect. But if someone is technically difficult to do, it's an excellent idea and highly recommended, my wife he has, despite initial skepticism, allows access to an entirely new experience.