Based on the original ZSh-7 design of 1987, it was introduced
Worn by pilots flying SU-27's and MiG-29's, it is equipped with a bracket where a Night Vision Equipment (NVE) or Sh-3UM-1 target designator is fitted.
Those devices allow the pilot to fire Air to Air missiles locking on targets by by looking at them.
The ZSh-7 uses, as the ZSh-3 and -5, an occipital bladder to tighten the pilot's face to the KM-34 Series 2 oxygen mask during High "G" manoeuvres.
The rubber part of the mask is the same as the one of the KM-35.