Designing for the Dive: How Cressi Builds Scuba Gear for Real Conditions Scuba gear doesn’t get a trial run. From the first time you use it, it’s got to perform perfectly, no matter the conditions, from saltwater to current, in cold water, or with low visibility.  Cressi designs equipment with that baseline in mind. Engineers test gear on repeated dives and in real conditions. Regulators need to deliver clean, clear airflow. BCDs must vent when you expect them to, and...