Halcyon Aviator and Motorcycle Goggles are made in England to the highest quality. The frames are manufactured in brass to prevent corrosion; have louvres to prevent misting and are hand stitched to the face mask. The lenses are available in polycarbonate or laminated glass and are easily replaceable. Nose bridge adjustment is provided with a screw or sliding nose bridge for the ideal fit. A quality elasticated headband with snap-on clips is fitted with all models.