For other items called Stratus 3.1, see Stratus 3.1.
Descended from an aerospace design, the optics and sensorium provide excellent awareness.
― In-game description

Stratus 3.1 is a basic Hunter helmet that can be obtained from encoded engrams.


Stratus 3.1 can be retrieved from one of the following activities/vendors:

Unknown source icon Unknown
This item can drop in situationally dependent ways.
Hunter Vanguard source icon Hunter Vanguard
Cayde-6, the Hunter Vanguard, sometimes sells this item in the Tower.
Quest source icon Quest
This item can drop as a Quest reward.
Crucible source icon Crucible
This item can drop as a Crucible match reward.
Strike source icon Strike
This item can drop as a Strike reward. Exotic items can only drop from the most challenging Strike playlist.