First degree:
LEG3ND's integrated dry chamber keeps internal components clean and dry by isolating them from the external environment
New molded cap slows down ice formation on the outer diaphragm
Auto-balanced (also known as over-balanced)
Progressive increase in working pressure to maintain optimal breathing effort: Depending on the diver's depth, the working pressure of the first stage automatically increases to counteract the increased density of breathing air
Perfectly positioned HP and MP ports ensure optimal hose routing

Second degree:
New front cover opening channels allow water to flow sideways over the diaphragm Radial openings to prevent free-flowing when diving in stronger currents
The openings are enlarged to reduce peak inspiratory flow by an impressive 20%.
New molded muffler cover made of elastomer with a “soft touch” effect.
Wide surface makes purging the regulator easier
Blow depth controller optimizes airflow with minimal effort
The patented Comfobite bite reduces jaw fatigue and provides a more comfortable second stage.