Loveseat Polarized EZ model Matte crystal/polar blue mirror Polycarbonate lenses are crispy and durable. Nylon frame cuts down on fatigue. Base curve of 6 presents warping at the edges. item #SCLD01R Polarized lenses eliminate glare to keep vision sharp on the water or on snow, and the grilamid frame is lightweight, tough, and subtly flexible for a comfortable fit and reliable durability. As for the style, the Loveseats feature a timeless rounded-square shape and a keyhole bridge detail for classic looks.