Designed for high performance and comfort, Stratus™ is the latest, most advanced commercial helmet pad system from Delta Three Oscar.

Drawing inspiration from our solutions for the United States Army, Stratus™ utilizes the full potential of D3O’s rate sensitive properties to simultaneously meet impact performance requirements at 10 and 14 feet per second.


Stratus™ is a one-size-fits-all helmet pad system that surpasses the required level of protection of the Advanced Combat Helmet standard (AR/PD 10-02) in both polyethylene and aramid shells. It is an off-the-shelf performance-enhancing accessory which can be integrated as an 8-pad or 10-pad system within most infantry combat helmets.

Stratus™ 8-pad system

Stratus™ 10-pad system


  • Uses patent pending D3O® technology 
  • Excellent blunt impact performance at both 10- and 14ft/s impact velocities 
  • Performance stability across multiple impacts and temperatures 
  • Integrated Comfort Liner for each pad 
  • Head-side fabrics offer anti-microbial treatment and superior moisture-wicking properties 
  • Available as an 8-pad (with crown) or 10-pad system (no crown) 
  • Meets SPS hook and loop adhesion requirements, providing strong adhesion into the helmet shell and easy removal when required 
  • Pressure management at high altitude, avoiding pressure points 
  • Berry Amendment compliant 


The Berry Amendment provides legally mandated preference to the U.S. Defense Industrial Base, protecting the production capacity and innovation required to produce domestically manufactured products, in support of the interests of national defense. Delta Three Oscar is proud to not only comply with this requirement, but also to work actively to enhance the capability of our U.S. operation, in order to maintain the safety and security of our armed forces. Our Berry-Compliant U.S. production is managed out of the Delta Three Oscar HQ at the Virginia Tech Corporate Research Center in Blacksburg, Virginia.

These commodities, software or technology are controlled for export by the United States government under the Export Administration Regulations. Purchaser is responsible to comply with these regulations if the items are to be exported from the United States.  ECCN 1A613 applicable.


NP Aerospace has made its most advanced ultra-lightweight high-cut tactical ballistic helmet - the LASA AC915 - even better, in partnership with Delta Three Oscar™. 


The helmet combines NP Aerospace’s hybrid ballistic helmet shell and tactical add-ons with Delta Three Oscar’s TRUST Nimbus™ blunt impact helmet liner system, which exceeds Advanced Combat Helmet (ACH) protection levels by 33% at 10ft/sec to reduce the risk of Traumatic Brain Injury.

Virginia Tech Corporate Research Center
1750 Kraft Drive Suite 1275
Blacksburg, VA 24060