The D3O Halo™ Helmet Liner System is the lightest, most breathable, and most comfortable helmet liner that surpasses ACH Blunt Impact Requirements (AR/PD 10-02).

Weighing 25% less than the next best liner on the market, Halo is the lightest ACH 10fps suspension system, reducing both weight and trauma.

Engineered for superior comfort, 37% of the liner is made from pure comfort foam, ensuring a plush, full-coverage fit without altering the standard 1″ helmet fit, delivering exceptional short- and long-term wearability. The scientifically developed comfort foam is wrapped in high-quality MILSPEC anti-microbial fabrics for enhanced durability and hygiene.

Enhanced Airflow

With 12 built-in airflow channels, D3O Halo promotes continuous air circulation between the user’s head and the helmet shell, helping to:

• Reduce moisture buildup
• Minimize sweat accumulation and prevent it from dripping into the eyes
• Maintain the comfort foam’s optimal stiffness

Seamless Headset Integration

The crown pad features a permanent headset band recess and strategically placed flex grooves, allowing it to adapt smoothly when used with headsets.

Exceptional Impact Protection

The Halo liner outperforms AR/PD 10-02 standards by 33%, maintaining an average impact force of less than 100g across all conditions, even in the most demanding liner-shell setups.

Offering the same top-tier impact protection as competitors while being 25% lighter, the Halo liner delivers superior consistency across various impact locations and temperatures.