[Jon]

It's opencell inside and smoothskin outside with a hole for your mouth and another for your eyes. It seals to your face and you face seals to the outside of it- no water leakage and it provides a great seal.

The whole thing is only 2-3mm thick and I can get it under my other hood without a problem. They really work, and for $30 you can't go wrong. Most dive shops should be able to order one for you.

jon