50% polycarbonate, 30% plastic, 15% foam, 5% silicone Imported Low-profile, cylindrical frame design helps increase visibility and improve helmet compatibility Available with Prizm Lens Technology is designed to enhance color and contrast so you can see more detail Microbag included for storage and lens cleaning Discreet frame notches at temples provide compatibility with most prescription eyewear Wide 40mm wide adjustable strap with silicone lining for a more secure fit