D30 HALO Helmet Liner System

The worlds lightest, most ventilated, comfortable helmet liner to exceed ACH blunt impact requirements (AR/PD 10-02). 25% Lighter than the next best competitor.  Shed Weight – Reduce Trauma – Save Lives

Halo has been designed with end-user comfort and fit in mind. The Delta Three Oscar team of engineers has maximized the comfort foam thickness – without altering the 0.75” fit – to guarantee best-in-class short and long term comfort. The comfort foam has been scientifically developed to provide a familiar plush, full coverage fit and is wrapped in premium MIILSPEC anti-microbial wicking fabrics.

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• Lightest helmet liner (80g) to exceed ACH blunt impact requirements (AR/PD 10-02)
• Most comfortable liner on the market with plush, full coverage fit
• Ventilation and moisture management via integrated air channels
• Versatile, self-conforming crown pad accommodates a number of comms headset configurations
• Unmatched thermodynamic impact consistency thanks to all-new D3O® technology

• D3O-proven blunt impact performance consistency from 1st to 2nd impact
• Premium anti-bacterial treated, moisture wicking MILSPEC fabrics
• Available either in single thickness (0.75” and 1”) or customizable (0.75” plus shims) fit
• 2 liner sizes (M and L/XL) available to accommodate all shell sizes
• Compatible with most Aramid and PE ACH, LW-ACH, MICH, ECH, LWH-type shells


Halo exceeds the AR/PD 10 02 requirements by 33%33%, averaging <100g across all conditions in the most challenging liner shell configurations.

Halo boasts the same overall impact performance as competitor Team Wendy Epic Air in a 25% lighter weight package whilst offering a much more consistent behavior across impact locations/temperatures.

HALO Spec Sheet

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