Using your iXS Hack goggles is easy. First, adjust the 45mm elastic strap to fit your head comfortably. Make sure the goggles sit snugly on your face. When you're wearing them, enjoy the wide field of view they offer for an unobstructed experience. As for care, clean the 2D clear anti - fog lens with a soft, dry cloth after each use. Avoid using harsh chemicals as they can damage the polycarbonate lens. Store the goggles in a cool, dry place. Remember, the lenses are compatible with the Trigger series, so you can swap them around as needed.