Nannini Streetfighters are designed to go over a helmet thanks to an adjustable hinge where the elastic band is mounted. They were modeled after early 20th century riding gear. The frames are separated to insure adaptability to fit all faces. There are six air intakes on the front of the frame for ventilation. Features high quality, clear, anti-fog lenses that do not distort light, are scratch resistant, and provide 100 percent UVA and UVB protection. Because of the separated frames, they can be folded to fit into a pocket. The padding is hand-sewn leather and is very comfortable. The adjustable strap features a silicone grip strip to keep your goggles secured around your helmet without sliding. They can be worn inside or outside of a helmet. Comes with a carrying case that doubles as a cleaning cloth. Measures 70 mm tall and 150mm wide. Made in Italy.