In-Mold Shell: A tough polycarbonate outer shell is fused with the foam liner for extra durability without excess weight. This also allows the ventilation system to be sculpted better, so temperature control is easier and more effective.

EPS Liner: Offers the most consistent performance across a wide range of conditions. Gram for gram, it absorbs more impact energy than other liner materials, plus it’s incredibly light.

4 vents

ASTM F2040 Compliance