Because our medical advisors told us how vulnerable the cheek, ear and temple area are, and how often we saw players turn their head to the side slightly just before impact we designed the faceOff to be very robust and resistant to deflection on the sides. We then placed high density closed cell foam over the ears, temples, and the cheeks. We then covered the cheeks (but not the ears so you can hear easily) with a sweat liner for comfort... and a little more protection.

Take a close look at how rigid the polycarbonate is, and how on impact it presses against the high density closed cell foam, and not directly on the cheek or temple.