Pinnacle's 7mm Hood is constructed to keep a diver's head warm and comfortable while diving in very cold waters. Hood is constructedfrom 7mm titanium lined neoprene throughout the hood and neck areas, has a large bib that tucks into wetsuit for a better seal and greater warmth, smooth-skin outer surface on bib creates seal against wetsuit, keeping water out, and 3mm face seal with smooth-skin seal. The face seal can be trimmed to any desired size; automatic vents allow air to escape as necessary from the top ofthe hood while restricting water to re-enter. Hood is equipped with reflective rear pattern for instant recognition and safety.