Bobster Shield Sunglasses Plastic frame Plastic lens Non-Polarized The Shield II offers a "frameless" construction. The temples feature a unique inset logo panel and hold the one-piece lenses in place comfortably and securely. The lenses themselves are precision crafted of shatter resistant polycarbonate and feature a contoured foam lining around the perimeter of the lens. Temple to temple: 133 mm. Frameless design.