The Kettner is a new timeless frame by Raen Optics. Handcrafted from zyl acetate, the frames? square shape offers a look that keeps things casual, and the CR-39 lenses offer reliable defense against harmful UVA/UVB rays during your day, while the included premium felt case and polishing cloth provide secure storage as the sun goes down. They also feature a combination temple and an inlaid metal brow bar. Available now in four different styles.