The Zeta II fitting system is manufactured in several thicknesses, ranging from 1/4 (size 2) to 5/8 (size 5) inches thick, in one-eight (1/8) inch increments.

• Improved padding over original ZetaLiner Systems
• Impact loads are reduced 25-35% in a helmet equipped with the ZetaLiner Helmet Liner and Combo ear seals and insulation kit, compared to the original helmet.
• Eliminates top-of-head hot spots.
• Selfwicking fabric controls heat buildup
• Eliminates "bob and roll" when mounting external equipment.
• Availabe in thickness sizes of 1/4", 3/8", 1/2", and 5/8".
• Fits the HGU 56P Helmet.

• Download the Installation and Cleaning Instruction
• Download the Sizing Chart to determine which liner is needed