Soldier Integrated Protective Ensemble
The Soldier Integrated Protective Ensemble (SIPE) program was a soldier modernization effort for combat ground troops of the United States Army. It focused on the areas of battery-powered items, such as individual soldier computers, heads-up displays, combat optics, aural boosting and protection, and microclimate conditioning.
Source: Wikipedia — Soldier Integrated Protective Ensemble (CC BY-SA 4.0)