Canterbury Ventilator Headgear - Based on aero matrix construction, the Ventilator Headguard by Canterbury is designed to be lightweight and flexible. Its closed cell polyethylene/spandex foam is engineered to absorb the shock of impact effectively. Easily get a secure fit with its lace-up closure and adjustable chin strap with pressure release. The spandex finish provides a comfortable fit, while an antimicrobial treatment fights odors. Imported.