Intake Valve, Titanium Layer & Stretch-ability

The streamlined DSV Intake Valve, with its large button and protective cap insures that the nozzle won't damage your suit while in transport to your destination.

Notice the silver color sheen of the black nylon; this is the Titanium Layer which reflects the cold water back outside. The inside layer reflects your body heat back to your body, to retain warmth inside the suit.  

The quality Yamamoto neoprene and its' stretch-ability insures a nice streamlined fit all around your body that helps reduce drag while increasing your air consumption and bottom time.   The same stretch-ability allows you to add undergarments as needed by the environment you are diving in.