D3O Halo™ 3 Ballistic Helmet Padded Liner System

Delta Three Oscar Halo™ 3 Ballistic Helmet Liner

Upgrade your helmet suspension system with the Delta Three Oscar Halo™ 3 Ballistic Helmet Liner, a lightweight, comfortable liner engineered to provide blunt impact protection while improving airflow and long-term wearability.

The Halo™ 3 utilizes D3O® technology to absorb and dissipate energy from blunt force impacts. Designed to exceed ACH blunt impact requirements (AR/PD 10-02), the Halo™ 3 combines impact protection with a comfortable, full-coverage design for extended wear.

The 0.75" Halo™ 3 liner is compatible with the Caliber Armor Level IIIA High-Cut Ballistic Helmet and is available in S/M/L and XL sizes.

Features & Benefits

• Lightweight Design – Lightest helmet liner (80 g), helping reduce overall helmet weight.
• Blunt Impact Protection – Designed to exceed ACH blunt impact requirements under AR/PD 10-02.
• D3O® Technology – D3O® impact material is designed to absorb and dissipate energy from blunt force impacts.
• Full-Coverage Comfort – Plush comfort foam provides a comfortable, full-coverage fit for extended wear.
• Optimized Airflow – 12 integrated airflow channels promote airflow between the wearer's head and helmet shell to help manage heat and moisture.
• Headset Compatible – The self-conforming crown pad accommodates a variety of communications headset configurations.
• Thermodynamic Stability – D3O® technology is designed to provide consistent impact performance across a range of temperatures.
• Multiple Sizes – Available in S/M/L and XL sizes.
• Moisture-Wicking Fabric – Premium MILSPEC fabric provides moisture-wicking performance with antimicrobial treatment.
• Broad Shell Compatibility – Designed to fit most compatible Aramid and PE ACH, LW-ACH, MICH, ECH, and LWH-type helmet shells.

Compatible with Caliber Armor Helmets

The Delta Three Oscar Halo™ 3 Ballistic Helmet Liner is compatible with the Caliber Armor Level IIIA High-Cut Ballistic Helmet, providing an upgraded suspension and impact protection solution for your helmet setup.

The Halo™ 3 is also designed to fit most compatible helmet shells, including Aramid and PE ACH, LW-ACH, MICH, ECH, and LWH-type helmets.

Designed for Protection & Comfort

The Halo™ 3 combines D3O® impact protection technology with a comfortable, full-coverage liner designed for extended wear. The liner is engineered to maintain consistent performance while helping reduce the weight and heat associated with traditional helmet suspension systems.

For users who spend extended periods wearing a helmet, the Halo™ 3 provides a combination of impact protection, ventilation, comfort, and fit in a lightweight package.

Optimized Airflow

The Halo™ 3 incorporates 12 integrated airflow channels to circulate air between the wearer's head and the helmet shell. This ventilation system helps reduce moisture and sweat accumulation while supporting a more comfortable fit during extended use.

Communications Headset Compatibility

The Halo™ 3 features a self-conforming crown pad designed to accommodate a variety of communications headset configurations. Strategically designed flex areas allow the crown pad to conform around compatible headset bands while maintaining a comfortable fit.

Available Sizes

Caliber Armor offers the Delta Three Oscar Halo™ 3 in the 0.75" thickness and two size configurations:

• S/M/L – 0.75" thickness
• XL – 0.75" thickness

Select the appropriate size for your helmet and desired fit.

Compatibility

The Delta Three Oscar Halo™ 3 is designed to be compatible with most:

• Aramid ACH-type helmets
• PE ACH-type helmets
• LW-ACH helmets
• MICH helmets
• ECH helmets
• LWH-type helmets

Caliber Armor Compatibility: The Halo™ 3 is compatible with the Caliber Armor Level IIIA High-Cut Ballistic Helmet.

Helmet fit and compatibility can vary based on shell size, cut, hardware, and configuration. Verify the appropriate liner size for your specific helmet before installation.

Specifications

What's Included

• 1 × Delta Three Oscar Halo™ 3 Ballistic Helmet Liner

Note: Helmet, retention system, communications equipment, and other accessories shown are not included unless otherwise specified.

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