Halo™ Ballistic Helmet Liner

The world's lightest, most comfortable, protective ballistic helmet liner. Delta Three Oscar Halo™ outperforms the next best competitor across all conditions and shell sizes of the 10fps ACH standard.

Trauma-reducing, lightweight and life-saving. Stay focused on the mission with the Halo™ Ballistic Helmet Liner.


  • Lightest helmet liner to exceed ACH blunt impact requirements (AR/PD 10-02)
  • Most comfortable liner on the market with plush, full coverage fit
  • D3O-proven blunt impact performance consistency from 1st to 2nd impact
  • Unmatched thermodynamic impact consistency thanks to all-new D3O® technology
  • Available either in single thickness (0.75” and 1”)
  • 2 liner sizes (S/M/L and XL) available to accommodate all shell sizes
  • Versatile, self-conforming crown pad accommodates a number of comms headset configurations
  • Ventilation and moisture management via integrated air channels
  • Compatible with most Aramid and PE ACH, LW-ACH, MICH, ECH, LWH-type shells
  • Premium anti-bacterial treated, moisture wicking MILSPEC fabrics

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.

Together we can all go further than any one of us can go on our own. If you’re looking for support or want to have the best provider of impact protection on your side, contact us here and we will have your back.