WARNING: This manual does NOT cover all information and procedures required to safely dive the O2ptima CM and is NOT a substitute for unit specific training.
The Optima CM attaches using two bolt snaps on the shoulders and two bolt snaps on the waist. It may be worn with any harness system that can allow a high shoulder mounted D-ring on the top of each shoulder, as well as a D-ring on each hip on the waist belt. Dive Rite recommends the Nomad LS sidemount harness, however the Optima CM can be used with a backplate and wing or even single tank BC’s as long as it can accommodate the proper D-ring placement.
For proper work of breathing, the O2ptima CM should be attached as high as possible on the chest. The counterlungs should sit just below the chin. Adjust the length of the straps holding the bolt snaps for a snug fit against the waist.